Updated on 2026/03/27

写真a

 
DEGAWA Tomohiro
 
Organization
Institute of Materials and Systems for Sustainability Division of Materials Research (DM) Assistant Professor
Graduate School
Graduate School of Informatics
Title
Assistant Professor
External link

Degree 4

  1. 博士（情報科学） （ 2008.3   名古屋大学 ） 

  2. 修士（情報科学） （ 2005.3   名古屋大学 ） 

  3. 学士（工学） （ 2003.3   大学評価・学位授与機構 ） 

  4. 準学士（機械工学） （ 2001.3   奈良工業高等専門学校 ） 

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Research Interests 14

  1. 高性能計算

  2. 数値シミュレーション

  3. 最適設計

  4. 高効率化

  5. クリーンエネルギ

  6. 創エネ

  7. 流体工学

  8. 混相流

  9. 高性能計算

  10. 混相流工学

  11. 流体力学

  12. 気液二相流

  13. 数値計算

  14. 数値流体力学

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Research Areas 2

  1. Informatics / High-performance computing

  2. Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Fluid engineering

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Current Research Project and SDGs 2

  1. 流体エネルギを利用する創エネ機器の創造と高効率化

  2. 産業用マルチスケール熱流体シミュレーション手法の開発とシミュレーション技術の包括的高度化

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Research History 10

  1. Nagoya University   Institute of Materials and Systems for Sustainability   Assistant Professor

    2024.7

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    Country：Japan

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  2. Toyota Systems corp.   Simulation System Division   Project Manager

    2022.1 - 2024.6

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  3. Nagoya University   Institute of Materials and Systems for Sustainability Division of Materials Reserch

    2019.4 - 2022.3

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  4. Toyota Systems corp.   Simulation System Division

    2019.1 - 2021.12

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  5. 名古屋大学未来材料・システム研究所   システム創成部門変換システム部   助教

    2016.10 - 2018.12

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    Country：Japan

  6. Nagoya University   Institute of Materials and Systems for Sustainability   Assistant Professor

    2016.10 - 2018.12

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  7. 株式会社トヨタコミュニケーションシステム   エンジニアリングシステム本部ES4部   主任

    2016.4 - 2016.9

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    Country：Japan

  8. Nagaoka University of Technology   Designated Associate Professor

    2014.10 - 2016.3

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    Country：Japan

  9. Numazu College of Technology   Lecturer

    2011.4 - 2014.9

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    Country：Japan

  10. The University of Electro-Communications   Assistant Professor

    2008.4 - 2011.3

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    Country：Japan

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Education 3

  1. Nagoya University   Graduate School, Division of Information Science

    2005.4 - 2008.3

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    Country： Japan

  2. Nagoya University   Graduate School, Division of Information Science

    2003.4 - 2005.3

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    Country： Japan

  3. Nara National College of Technology

    2001.4 - 2003.3

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    Country： Japan

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Professional Memberships 6

  1. オープンCAE学会

  2. 日本混相流学会

  3. 日本計算工学会

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  4. 日本機械学会

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  5. THE JAPAN SOCIETY FOR INDUSTRIAL AND APPLIED MATHEMATICS

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  6. 情報処理学会

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Committee Memberships 10

  1. 日本機械学会   企業連携活性化WG幹事  

    2024.4   

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    Committee type：Academic society

  2. 日本機械学会   流体工学部門広報委員会委員長  

    2024.4 - 2025.3   

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    Committee type：Academic society

  3. 日本機械学会   流体工学部門広報委員会幹事  

    2023.4 - 2024.3   

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    Committee type：Academic society

  4. 日本混相流学会   ダイバーシティ委員  

    2021.8   

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  5. 日本混相流学会   編集委員会委員  

    2018.8 - 2021.8   

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  6. 日本機械学会   流体工学部門広報委員会委員  

    2017.4   

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    Committee type：Academic society

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  7. International Conference on Vortex Flows and Vortex Models   Local Organizing Committee  

    2014.4 - 2015.3   

  8. 日本機械学会   噴流，後流，及びはく離流れ研究会幹事  

    2013 - 2022.4   

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    Committee type：Academic society

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  9. 日本混相流学会編集員会   委員  

    2010.4 - 2014.3   

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    Committee type：Academic society

  10. 情報処理学会主催GPUチャレンジ2010実行委員会   委員  

    2010.4 - 2011.4   

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    Committee type：Academic society

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Awards 2

  1. second prize in NEC supercomputer programming contest

    2023.3  

    Tomohiro Degawa

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  2. 日本計算工学会論文奨励賞

    2015.5   一般社団法人日本計算工学会   (10) 漸化式によるVortex-in-Cell法の渦要素－格子補間の高速化とその誤差評価

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    Award type：Honored in official journal of a scientific society, scientific journal  Country：Japan

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Papers 54

  1. Effect of a snow mass passing through an open-type cross-flow turbine on the power generation Open Access

    Takamure, K; Satou, E; Ikeda, T; Uchiyama, T; Okayama, T; Miyazawa, T; Tsunashima, D; Degawa, T; Sasaki, K; Nagase, K

    RENEWABLE ENERGY   Vol. 257   2026.2

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    Publisher：Renewable Energy  

    Small-scale hydropower generation is increasingly recognized as a distributed power source with low environmental impact and high disaster resilience. In Japan, snow accumulation in snowy regions can be carried by water flows, impacting the performance of microhydroturbines. This study performed field experiments using spherical snowballs to replicate these snow masses. This study aims to evaluate the response of an open-type cross-flow hydraulic turbine to snowball interference under winter field conditions. Snowball was released upstream of the turbine, and detailed observations were made of both the turbine's output variations and the snowball behavior. The experiments revealed that when the snowball diameter was approximately equal to the rotor blade spacing, the power output temporarily decreased but quickly recovered. Conversely, when the snowball diameter exceeded the blade spacing, the power output experienced sharp decline, with recovery times varying across experiments. It was also confirmed that the compression, crushing, and downstream discharge of the snowball by the blades influenced the output fluctuations. These findings provide initial insight into the behavior of open-type microhydraulic turbines under snow mass interference, which is relevant to winter operation in snowy regions.

    DOI： 10.1016/j.renene.2025.124810

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  2. Visualization of several vortex shedding mechanisms in jets from a two-dimensional nozzle equipped with cutoff airfoils

    Wang, CQ; Takamure, K; Degawa, T; Uchiyama, T

    PHYSICS OF FLUIDS   Vol. 38 ( 2 )   2026.2

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    Publisher：Physics of Fluids  

    This study examines the flow characteristics and vortical dynamics of plane jets issued from two-dimensional converging nozzles equipped with cutoff NACA (National Advisory Committee for Aeronautics) 0036 airfoils using particle image velocimetry (PIV). Building upon previous hot-wire measurements that demonstrated centerline velocity enhancements, this work provides direct spatial visualization of the boost effect [centerline velocity enhancement relative to the baseline jet (BJ)] and elucidates its underlying mechanisms. Three configurations were investigated: a BJ without an airfoil, a complete NACA0036 airfoil (AF), and a cutoff airfoil (CA) truncated at 95% of the chord length. PIV results show that, at a low-to-moderate Reynolds number, the CA configuration achieved centerline velocity enhancements of up to 40% at x/D = 2, compared with 30% for AF, with both configurations substantially outperforming the BJ. Spatial visualization of Reynolds shear stress revealed that truncated airfoils generate inner stress regions near the jet centerline, forming dual inward momentum fluxes that converge at the centerline. Instantaneous vorticity field visualization revealed fundamentally distinct enhancement mechanisms among the configurations: the BJ exhibited gradual vortex roll-up and pairing; the AF demonstrated cross-stream vortex merging between same-signed vortices from the inner and outer shear layers; and the CA produced high-intensity individual vortices without merging. Vortex strength and scale play a more dominant role in jet enhancement in the momentum transfer process. The PIV measurements offer spatial visualization of the complete momentum transfer process, confirming that high-intensity vortical structures govern the inward momentum redistribution responsible for the boost effect.

    DOI： 10.1063/5.0311761

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  3. Particle image velocimetry measurement of the wake of a particle with a uniaxial through-hole placed in a uniform flow Open Access

    Takamure, K; Kobayashi, D; Uchiyama, T; Degawa, T

    POWDER TECHNOLOGY   Vol. 468   2026.1

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    Publisher：Powder Technology  

    As a significant contributor to drag and vibration, the wake created when an object is placed in a fluid flow or moves within a fluid has been extensively investigated. However, studies investigating the effects of through-holes are limited. Therefore, this study addresses this limitation by leveraging three-dimensional particles with uniaxial through-holes, which produce an axisymmetric jet that interacts with the wake in a fundamentally different manner. In this study, the wake behind a particle with a through-hole along its center axis was analyzed using particle image velocimetry in a uniform flow. The particle had a diameter of d=25.4mm, with the through-hole diameter dh varying by up to 15 mm, corresponding to a diameter ratio γ=dh/d≤0.59. The uniform flow velocity was set to 3.6 m/s, resulting in a Reynolds number of approximately 6000. The results revealed that the flow structure behind the particle was significantly influenced by the diameter ratio γ. As γ increased, the jet flow from the through-hole intensified and surpassed the freestream velocity for γ=0.24,0.35. The reverse flow region behind the particle decreased with increasing γ, leading to the formation of distinct vortex structures owing to the interaction between the separated shear layer and through-hole jet. For a smaller γ, a pair of vortices formed along the separated shear layers and another pair on both sides of the through-hole jet. Conversely, the shear-layer vortices diminished as γ increased, whereas the through-hole jet vortices elongated downstream. At γ=0.59, only the shear-layer vortices remained closely attached to the surface of the particle. These findings offer valuable insights into wake control using through-hole modifications and enhance our understanding of shear layer and jet interactions in bluff-body wakes.

    DOI： 10.1016/j.powtec.2025.121638

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  4. Experimental investigation of jet issued from two-dimensional nozzle equipped with cutoff airfoils

    Wang, CQ; Takamure, K; Degawa, T; Uchiyama, T

    PHYSICS OF FLUIDS   Vol. 37 ( 6 )   2025.6

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    Publisher：Physics of Fluids  

    This study investigates the jets issued from two-dimensional converging nozzles equipped with cutoff airfoils (AFs) to clarify the effects of different cutoff positions and mechanisms of the “boost effect” on improving the air-curtain performance. An unmodified NACA (the National Advisory Committee for Aeronautics) 0036 AF and three cutoff AFs truncated at 95% (CA95), 85% (CA85), and 70% (CA70) of the chord length from the leading edge are placed inside the nozzle. The spatial development in the wake of this nozzle is compared with that of a nozzle without AFs (basic jet, BJ) using hot-wire velocimetry. The results show that the streamwise mean velocity (boost effect) decreases along the jet center, in the order of CA70, CA85, CA95, and AF, with the maximum value being 92%, 67%, 53%, and 44% at x/D = 2 or 3, respectively, larger than that of BJ. Even after eliminating the influence of the reduced wind tunnel exit cross-sectional area, the AF and CA95 cases exhibit the most significant boost effects across the entire range. In contrast, all cutoff AF cases show marked velocity enhancements in the upstream sections (x/D ≤ 5). When the converging nozzle is equipped with cutoff AFs, the velocity increase along the jet center (boost effect) can be attributed to the significant momentum transfer toward the jet center driven by periodic large-scale vortex shedding. Moreover, the Strouhal number gradually decreases as the separation distance between the two jets (d/w) increases.

    DOI： 10.1063/5.0265277

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  5. Motion characteristics of sphere with uniaxial through-hole after passing through air-water interface: Case study with different submergence depths Reviewed Open Access

    Takamure, K; Uchiyama, T; Degawa, T

    APPLIED OCEAN RESEARCH   Vol. 154   2025.1

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.apor.2024.104341

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  6. Falling of a spherical particle in fine-bubble plume and fine-bubble behavior around the particle Reviewed

    K. Takamure, Y. Kawasaki, T. Degawa, T. Uchiyama

    Fluid Dynamics   Vol. 56 ( 5 ) page： 612 - 621   2021.9

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1134/S001546282105013X

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  7. Mixing of a Two-Layer Density-Stratified Fluid by Two Vortex Rings Successively Launched towards the Density Interface Reviewed Open Access

    L. Cao, K. Takamure, T. Degawa, T. Uchiyama

    Journal of Visualization   Vol. 24 ( 4 ) page： 683 - 697   2021.8

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Springer Nature  

    DOI： 10.1007/s12650-020-00738-8

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  8. Numerical simulations of the flow and performance of a hydraulic Savonius turbine by the vortex in cell method with volume penalization

    Tomomi Uchiyama, Qiang Gu, Tomohiro Degawa, Shouichiro Iio, Toshihiko Ikeda, Kotaro Takamure

    RENEWABLE ENERGY   Vol. 157   page： 482 - 490   2020.9

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.renene.2020.05.001

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  9. Motion of a spherical particle in a microbubble plume and the behavior of microbubbles around the particle Reviewed

    T. Uchiyama, Y. Kawasaki, T. Degawa, K. Takamure

    Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science   Vol. 234 ( 7 ) page： 1340 - 1350   2020.4

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    Language：English   Publishing type：Research paper (scientific journal)  

    This study aims to investigate the motion of a solid spherical particle in a microbubble plume and the behavior of bubbles around the particle. Microbubbles (mean diameter 0.037 mm) released into a rectangular conduit by the electrolysis of water rise via buoyancy and form a bubble plume in the conduit. A solid spherical particle with a diameter of 10 mm and density of 1022 kg/m3 is placed on a mesh stretched across the cross-section near the bottom of the conduit, and microbubbles are then released from the cathode. Experiments are conducted with the bubble volumetric flux in the conduit jG at 0.05 and 0.09 mm/s. The particle repeatedly rises and falls when jG = 0.05 mm/s, and it rises almost vertically when jG = 0.09 mm/s. The absolute value of the vertical velocity of the particle is lower than that of the bubble. There is a belt-like region where the bubble velocity is extremely lower behind the particle. Such wake behind the particle clearly appears when the particle is falling, because the bubble velocity relative to the particle is higher.

    DOI： 10.1177/0954406219893000

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  10. Effect of cylinders on the characteristics of a fine-bubble plume Open Access

    TAKAMURE Kotaro, DEGAWA Tomohiro, KANO Ryota, UCHIYAMA Tomomi

    Journal of Fluid Science and Technology   Vol. 15 ( 3 ) page： JFST0019 - JFST0019   2020

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：The Japan Society of Mechanical Engineers  

    <p>The characteristics of a fine-bubble plume passing through two tandem cylinders are investigated. Fine-bubbles with a mean diameter of 0.055 mm are released by water electrolysis from electrodes placed at the bottom of a tank. They induce an upward water flow around them with rising due to buoyancy. Orthogonally to the axis of such fine–bubble plume, two cylinders with a diameter <i>D</i> of 30 mm are arranged in tandem. The distance between the cylinders, <i>L</i>, ranges between 1.5<i>D</i> and 3<i>D</i>. This study visualizes the bubbles and water flow around the cylinders. It also measures the bubble velocity distribution. The experiments reveal the water and bubble shear layers originating at the sides of the lower cylinder and make clear their behavior around the upper cylinder. This study elucidates the effects of <i>L</i> on the characteristics of the fine-bubble plume, such as the stagnant bubbly flow and the bubbly wake around the cylinders.</p>

    DOI： 10.1299/jfst.2020jfst0019

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  11. Numerical simulation of the flow and performance of a Savonius hydraulic turbine provided with a shield plate Open Access

    TAKAMURE Kotaro, GU Qiang, DEGAWA Tomohiro, UCHIYAMA Tomomi, IIO Shouichiro, IKEDA Toshihiko

    Transactions of the JSME (in Japanese)   Vol. 86 ( 887 ) page： 20-00181 - 20-00181   2020

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    Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

    <p>The flow and performance of a rotor of a Savonius hydraulic turbine provided with a shield plate were analyzed by the two-dimensional simulations. The rotor diameter <i>D<sub>R</sub></i> is 142 mm, and the Reynolds number based on the velocity of the main flow <i>U</i><sub>0</sub>, <i>U</i><sub>0</sub><i>D<sub>R</sub></i>/<i>ν</i>, is 1.1×10<sup>5</sup>. The shield plate with a length of 0.5<i>D<sub>R</sub></i> is installed upstream of the rotor, perpendicular to the main flow. The comparative experimental studies have visualized the flow and clarified that the shield plate increases the power output of the rotor. The vortex in cell method combined with the volume penalization method was applied to the flow simulation, and the torque acting on the rotor was computed with a custom method by the authors. The simulated flows around the shield plate and rotor agreed with the experimentally visualized ones. The simulation successfully revealed the effect of the shield plate on the flow and power output of the rotor. These demonstrate the applicability of the present simulation method for the performance prediction of the rotor of Savonius hydraulic turbines provided with a shield plate.</p>

    DOI： 10.1299/transjsme.20-00181

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  12. Numerical Simulation of Bubbly Flow around a Cylinder by semi-Lagrangian‒Lagrangian Method Reviewed

    V. L. Nguyen, T. Degawa, T. Uchiyama, K. Takamure

    International Journal of Numerical Methods for Heat and Fluid Flow   Vol. 29 ( 12 ) page： 4660 - 4683   2019.12

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1108/HFF-03-2019-0227

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  13. Numerical simulation of fluid forces on moving solid body by the vortex in cell method with volume penalization Reviewed

    T. Degawa, T. Uchiyama, Q. Gu, K. Takamure

    Aerospace Science and Technology   Vol. 94   page： 105360   2019.11

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.ast.2019.105360

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  14. Experimental Study of Mixing of Two-Layer Density-Stratified Fluid by a Vortex Ring Reviewed

    L. Cao, R. Ito, T. Degawa, Y. Matsuda, K. Takamure, T. Uchiyama

    Proceedings of ASME-JSME-KSME 2019 8th Joint Fluids Engineering Conference   Vol. 5   page： AJKFluids2019-4972 - V005T05A030 (8 pages)   2019.11

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    Language：English   Publishing type：Research paper (international conference proceedings)  

    DOI： 10.1115/AJKFluids2019-4972

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  15. Flow Past Two Cylinders Arranged in Tandem Within a Microbubble Plume Reviewed

    T. Uchiyama, R. Kano, T. Degawa, K. Takamure

    Proceedings of ASME-JSME-KSME 2019 8th Joint Fluids Engineering Conference   Vol. 5 ( AJKFluids2019-4971 ) page： V005T05A042 (10pages)   2019.11

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    Language：English   Publishing type：Research paper (international conference proceedings)  

    DOI： 10.1115/AJKFluids2019-4971

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  16. Numerical simulation of the interaction between a vortex ring and a bubble plume

    Nguyen, VL; Degawa, T; Uchiyama, T

    INTERNATIONAL JOURNAL OF NUMERICAL METHODS FOR HEAT & FLUID FLOW   Vol. 29 ( 9 ) page： 3192 - 3224   2019.9

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    Publisher：International Journal of Numerical Methods for Heat and Fluid Flow  

    Purpose: This paper aims to provide discussions of a numerical method for bubbly flows and the interaction between a vortex ring and a bubble plume. Design/methodology/approach: Small bubbles are released into quiescent water from a cylinder tip. They rise under the buoyant force, forming a plume. A vortex ring is launched vertically upward into the bubble plume. The interactions between the vortex ring and the bubble plume are numerically simulated using a semi-Lagrangian–Lagrangian approach composed of a vortex-in-cell method for the fluid phase and a Lagrangian description of the gas phase. Findings: A vortex ring can transport the bubbles surrounding it over a distance significantly depending on the correlative initial position between the bubbles and the core center. The motion of some bubbles is nearly periodic and gradually extinguishes with time. These bubble trajectories are similar to two-dimensional-helix shapes. The vortex is fragmented into multiple regions with high values of Q, the second invariant of velocity gradient tensor, settling at these regional centers. The entrained bubbles excite a growth rate of the vortex ring's azimuthal instability with a formation of the second- and third-harmonic oscillations of modes of 16 and 24, respectively. Originality/value: A semi-Lagrangian–Lagrangian approach is applied to simulate the interactions between a vortex ring and a bubble plume. The simulations provide the detail features of the interactions.

    DOI： 10.1108/HFF-12-2018-0734

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  17. Numerical simulation of annular bubble plume by vortex in cell method

    Van Luc Nguyen, Tomohiro Degawa, Tomomi Uchiyama

    International Journal of Numerical Methods for Heat and Fluid Flow   Vol. 29 ( 3 ) page： 1103 - 1131   2019.3

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Emerald Group Holdings Ltd.  

    DOI： 10.1108/HFF-03-2018-0094

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  18. EXPERIMENTAL STUDY OF MIXING OF TWO-LAYER DENSITY-STRATIFIED FLUID BY A VORTEX RING

    Cao, L; Ito, R; Degawa, T; Matsuda, Y; Takamure, K; Uchiyama, T

    PROCEEDINGS OF THE ASME/JSME/KSME JOINT FLUIDS ENGINEERING CONFERENCE, 2019, VOL 5     2019

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  19. Numerical Simulations of the Flow and Performance of a Hydraulic Savonius Turbine by the Vortex in Cell Method with Volume Penalization Open Access

    TAKAMURE Kotaro, UCHIYAMA Tomomi, GU Qiang, DEGAWA Tomohiro, Iio Shouichiro, IKEDA Toshihiko

    The Proceedings of Mechanical Engineering Congress, Japan   Vol. 2019 ( 0 ) page： S05121   2019

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    Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

    <p>This study is concerned with the numerical simulations of the flow and performance of a rotor of a hydraulic Savonius turbine. The flow was simulated using the vortex in cell (VIC) method in combination with the volume penalization (VP) method. The torque acting on the rotor was computed using a custom method, which can accurately calculate the fluid forces on solid bodies in flows simulated by the VIC-VP method, to analyze the rotational speed and power output of the rotor. The simulated flow around the rotating blades agreed qualitatively with the experimentally visualized flow, and the analyzed relation between the rotor's rotational speed and power output agreed well with the experimentally measured relation. These demonstrate that the VIC-VP method in combined with the authors' method for calculating fluid forces is applicable for the simulations of flow and performance of hydraulic Savonius turbines.</p>

    DOI： 10.1299/jsmemecj.2019.s05121

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  20. Flow around Two Circular Cylinders Placed Tandemly Inside a Microbubble Plume Open Access

    UCHIYAMA Tomomi, KANO Ryota, DEGAWA Tomohiro, TAKAMURE Kotaro

    The Proceedings of the Fluids engineering conference   Vol. 2019 ( 0 ) page： OS3-07   2019

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    Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

    <p>This study investigates the flow past two cylinders arranged in tandem within a microbubble plume inside a tank. Microbubbles with a mean diameter of 0.055 mm are released by water electrolysis from electrodes placed at the bottom of the tank. Upon rising, these microbubbles induce an upward water flow around them due to buoyancy. Orthogonally to the axis of this microbubble plume, two cylinders with a diameter <i>D</i> of 30 mm are arranged in tandem. The distance between the cylinders, <i>L</i>, ranges between 1.5<i>D</i> and 3<i>D</i>. The bubbles and the water flow around the cylinders are visualized, and the bubble velocity distribution is measured. The experiments reveal the water and bubble shear layers originating at the sides of the lower cylinder, and allow the elucidation of their behavior around the upper cylinder. Furthermore, this study makes clear the effects of <i>L</i> on the flow around the two cylinders, such as the stagnant bubbly flow and the bubbly wake.</p>

    DOI： 10.1299/jsmefed.2019.os3-07

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  21. Numerical Simulation of Pin-on-disk Sliding Lubricated with Nanometer-thick Liquid Film by MPS Method Open Access

    WATABE Shotaro, Uchiyama Tomomi, TAKAMURE Kotaro, ZHANG Hedong, DEGAWA Tomohiro

    The Proceedings of Mechanical Engineering Congress, Japan   Vol. 2019 ( 0 ) page： S16105P   2019

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    Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

    <p>Pin-on-disk sliding tests have been carried out to investigate lubrication properties of nanometer-thick liquid films. However, it is difficult to experimentally observe the detailed flow behavior of the films at the nanoscale contacting interface. To solve this problem, we performed numerical simulations with the moving particle semi-implicit (MPS) method in this study. To model a pin sitting on a rotating disk lubricated with a nanometer-thick liquid film, the effects of surface tension and external force were taken into account in the governing equation. As a result, details of the behavior of the film and pin and their interference were visualized. This result suggests that the MPS method is potentially useful for clarifying the mechanism of lubrication with nanometer-thick liquid films.</p>

    DOI： 10.1299/jsmemecj.2019.s16105p

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  22. FLOW PAST TWO CYLINDERS ARRANGED IN TANDEM WITHIN A MICROBUBBLE PLUME

    Uchiyama, T; Kano, R; Degawa, T; Takamure, K

    PROCEEDINGS OF THE ASME/JSME/KSME JOINT FLUIDS ENGINEERING CONFERENCE, 2019, VOL 5     2019

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  23. Development of a propeller-type hollow micro-hydraulic turbine with excellent performance in passing foreign matter Reviewed

    Tomomi Uchiyama, Satoshi Honda, Tomohiro Degawa

    Renewable Energy   Vol. 126   page： 545 - 551   2018.10

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.renene.2018.03.083

    Web of Science

    Scopus

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  24. Multi-Directional Redistribution for the Vortex Particle Method

    Degawa Tomohiro, Uchiyama Tomomi

    The Proceedings of the 8th International Conference on Vortex Flow Mechanics     2018.10

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    Language：English   Publishing type：Research paper (international conference proceedings)  

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  25. Improvements to the convection scheme in the vortex particle method using a semi-Lagrangian method Reviewed Open Access

    Degawa Tomohiro, Uchiyama Tomomi

    JOURNAL OF ALGORITHMS & COMPUTATIONAL TECHNOLOGY   Vol. 12 ( 3 ) page： 223 - 233   2018.9

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  26. Experimental study of mixing of density-stratified fluid in a cylindrical tank by a diagonal jet

    Degawa Tomohiro, Uno Kota, Uchiyama Tomomi

    Proceedings of 18th International Symposium on Flow Visualization     2018.6

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    Language：English   Publishing type：Research paper (international conference proceedings)  

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  27. Numerical simulation of jet issuing diagonally upward into density-stratified fluid in cylindrical tank Reviewed

    Degawa Tomohiro, Uchiyama Tomomi, Aozasa Isao, Ishikawa Akira, Motoyama Koji

    Journal of Power and Energy Engineering   Vol. 6 ( 3 ) page： 38 - 52   2018.3

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.4236/jpee.2018.63004

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  28. Falling of a Spherical Particle in Microbubble Plume and Microbubble Behavior around the Particle Open Access

    UCHIYAMA Tomomi, KAWASAKI Yujiro, DEGAWA Tomohiro

    The Proceedings of the Fluids engineering conference   Vol. 2018 ( 0 ) page： OS5-20   2018

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    Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

    <p>This study conducts experimental exploration on the motion of a solid spherical particle falling in a microbubble plume and the bubble behavior around the particle. Bubbles with a mean diameter of 0.037 mm, released into a rectangular conduit using the electrolysis of water, rise by the buoyant force and induce a bubble plume. A spherical particle with a diameter 11.1 mm and density 1130 kg/m<sup>3</sup> is released from the top of the conduit. The experiment clarifies that the particle falls meandering through the plume and that the terminal velocity is almost the same as that for a particle falling in quiescent water. The experiment also makes clear that the bubbles separate from the particle surface and that the separation induces a stagnation area just behind the particle. A wake still exists at a location with a distance of three times of the particle diameter from the particle.</p>

    DOI： 10.1299/jsmefed.2018.os5-20

    Open Access

    CiNii Research

  29. Motion of a Spherical Particle in Microbubble Plume and Bubble Behavior around the Particle Open Access

    UCHIYAMA Tomomi, DEGAWA Tomohiro, KAWASAKI Yujiro

    The Proceedings of Mechanical Engineering Congress, Japan   Vol. 2018 ( 0 ) page： S0510401   2018

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    Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

    <p>This study investigates the motion of a spherical particle in microbubble plume and the bubble behavior around the particle. Microbubbles with a mean diameter of 0.037 mm, released into a rectangular conduit using the electrolysis of water, rise by the buoyant force and induce a bubble plume in the conduit. A spherical particle with a diameter 10 mm and a density 1022 kg/m<sup>3</sup> is placed on a mesh stretched near the bottom of the conduit at the commencement of the microbubble release from the cathode. The experiments clarify the effects of the bubble volumetric flux on the motion of the particle. They also explore the bubble distribution and velocity around the rising, still and lowering particle to make clear the front stagnation and wake of the particle.</p>

    DOI： 10.1299/jsmemecj.2018.s0510401

    Open Access

    CiNii Research

  30. Numerical Simulation of Flow around an Oscillating Cylinder by Vortex in Cell Method Open Access

    DEGAWA Tomohiro, GU Qiang, UCHIYAMA Tomomi

    The Proceedings of Mechanical Engineering Congress, Japan   Vol. 2018 ( 0 ) page： S0510105   2018

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    Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

    <p>In the present study, we propose a method for calculating the fluid dynamic forces acting on bodies in a two-dimensional simulation of a flow around a moving body by using the vortex–in–cell method. The body is represented using the volume penalization method which introduces the influence of the body on the flow as an external force in the form of a penalization term into the Navier–Stokes equation. The pressure field is computed by solving the Poisson equation, which is derived by obtaining the divergence of the Navier-Stokes equation. The pressure and viscous stress on the body surface are obtained from a quadratic function along the vector normal to the surface. A flow around a circular cylinder oscillating in still water is simulated, and the fluid dynamic force acting on the cylinder is calculated using the proposed method. The velocity profiles across four cross-sections at three different time points agree well with the results of a measurement conducted using a laser Doppler velocimeter. The in-line force acting on the cylinder agrees with the results of the simulations performed using the boundary-conforming formulation.</p>

    DOI： 10.1299/jsmemecj.2018.s0510105

    Open Access

    CiNii Research

  31. Numerical simulation of a vortex ring impacting with a density interface of density-stratified fluids

    Ito Takenori, Degawa Tomohiro, Uchiyama Tomomi, Tsunoda Hiroyuki

    Proceedings of International Conference on Jets, Wakes and Separated Flow     2017.10

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    Language：English   Publishing type：Research paper (international conference proceedings)  

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  32. Numerical simulation of the interaction between a vortex ring and bubble plume by vortex in cell method

    Nguyen Van Luc, Degawa Tomohiro, Uchiyama Tomomi

    Proceedings of 9th JSME-KSME Thermal and Fluids Engineering Conference     2017.10

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  33. Numerical simulation of mixing of two-layer density-stratified fluid by vortex rings launched toward the density interface

    Degawa Tomohiro, Uchiyama Tomomi

    Proceedings of International Conference on Jets, Wakes and Separated Flow     2017.10

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  34. Numerical simulation of mixing by a vortex ring launched vertically upward into two-layer density-stratified fluid Reviewed

    Degawa Tomohiro, Ito Takenori, Uchiyama Tomomi

    Proceedings of 9th JSME-KSME Thermal and Fluids Engineering Conference     2017.10

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    Language：English   Publishing type：Research paper (international conference proceedings)  

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  35. Development of a micro-hydraulic turbine excellent in foreign matter passage performance

    Kaneko Akira, Honda Satoshi, Uchiyama Tomomi, Degawa Tomohiro, Okayama Tomoko, Pasomsouk K

    Proceedings of International Conference on Materials and Systems for Sustainability 2017     2017.9

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  36. Generation and transport of solid particle clusters using a vortex ring launched into water Reviewed

    Tomomi Uchiyama, Chiaki Yano, Tomohiro Degawa

    International Journal of Chemical Engineering and Applications   Vol. 8 ( 4 ) page： 253-260   2017.8

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.18178/ijcea.2017.8.4.666

  37. Flow around a circular cylinder inside a bubble plume

    Degawa Tomohiro, Uchiyama Tomomi, Ishiguro Yukihiro

    Proceedings of 4th Symposium on Fluid-Structure-Sound Interactions and Control     2017.8

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    Language：English   Publishing type：Research paper (international conference proceedings)  

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  38. Generation and transport of solid particle clusters using a vortex ring launched into water Reviewed

    Uchiyama Tomomi, Yano Chiaki, Degawa Tomohiro

    International Journal of Chemical Engineering and Applications   Vol. 8 ( 4 ) page： 253 - 260   2017.8

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    Language：English   Publishing type：Research paper (scientific journal)  

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  39. Behavior of a jet issuing diagonally upward into two-layer density-stratified fluid in a cylindrical tank Reviewed

    Tomohiro Degawa, Shota Fukue, Tomomi Uchiyama, Akira Ishikawa, Koji Motoyama

    Journal of Flow Control, Measurement & Visualization   Vol. 5 ( 3 ) page： 51-64   2017.7

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.4236/jfcmv.2017.53004

  40. Behavior of a jet issuing diagonally upward into two-layer density-stratified fluid in a cylindrical tank Reviewed

    Degawa Tomohiro, Fukue Shota, Uchiyama Tomoni, Ishikawa Akira, Motoyama Koji

    Journal of Flow Control, Measurement & Visualization   Vol. 5 ( 3 ) page： 51 - 64   2017.6

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    Language：English   Publishing type：Research paper (scientific journal)  

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  41. Behavior of a jet issuing diagonally upward into two-layer density-stratified fluid in a cylindrical tank

    Degawa Tomohiro, Fukue Shota, Uchiyama Tomoni, Ishikawa Akira, Motoyama Koji

    Proceedings of 13th International Symposium on Experimental and Computational Aerothermodynamics of Internal Flows     2017.5

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    Language：English   Publishing type：Research paper (international conference proceedings)  

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  42. Numerical simulation of jet issuing diagonally upward into density-stratified fluid in cylindrical tank Reviewed

    Degawa Tomohiro, Uchiyama Tomomi, Aozasa Isao, Ishikawa Akira, Motoyama Koji

    Proceedings of 14th Asian Symposium on Visualization     2017.5

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    Language：English   Publishing type：Research paper (international conference proceedings)  

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  43. Numerical Simulation of a Vortex Ring Impacting with a Density Interface of Density-stratified Fluids

    ITO Takenori, DEGAWA Tomohiro, Uchiyama Tomomi, TSUNODA Hiroyuki

    The Proceedings of Mechanical Engineering Congress, Japan   Vol. 2017 ( 0 ) page： S0520406   2017

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    Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

    <p>This study simulates the behavior of a vortex ring launched toward the interface of a two-layer density stratified fluid and the resulting mixing phenomena between the fluids. Initially, the density-stratified fluid is in a static condition in a tank. The upper and lower fluids are glycerol aqueous solution and an aqueous solution of potassium dihydrogen phosphate, respectively. The vortex ring with a diameter of 26.4 mm is launched vertically downward from the upper fluid region. It travels by the vertical motion toward the density interface. The Reynolds number, based on the circulation of the vortex ring, is 3500. The simulation conditions are parallel with an experimental work of one of the authors. The vortex in cell method, which was presented by the authors for flow simulations of two-layer density stratified fluid in a prior study, is used. The simulation favorably highlights the collision, deformation and penetration of the vortex ring at the density interface. It also successfully reveals the mixing between the upper and lower fluids induced by the motion of the vortex ring. These simulated results are discussed by comparing with the corresponding experimental ones.</p>

    DOI： 10.1299/jsmemecj.2017.s0520406

    CiNii Research

  44. Numerical Simulation of Mixing Process by Vortex Rings Launched into Two-Layer Density-Stratified Fluid

    DEGAWA Tomohiro, Uchiyama Tomomi

    The Proceedings of Mechanical Engineering Congress, Japan   Vol. 2017 ( 0 ) page： S0520405   2017

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    Language：Japanese   Publisher：The Japan Society of Mechanical Engineers  

    <p>This study numerically investigates the mixing of a two-layer density stratified fluid caused by vortex rings. Initially, the density-stratified fluid is in a static condition in a tank. The upper and lower fluids are glycerol aqueous solution and an aqueous solution of potassium dihydrogen phosphate, respectively. Two vortex rings are arranged on a vertical line in the lower fluid, and the axial interval is 80 mm. The diameter of the vortex ring is 26.4 mm, and the Reynolds numbers based on the circulation are 4000, 6000, and 8000. The vortex rings are launched simultaneously in the vertically upward direction. The simulation explores the collision of the vortex rings with the density interface, the entrainment of the fluids into the vortex rings, and the resulting mixing between the fluids. It also clarifies the behavior of each vortex ring, such as the deformation and the interaction with the density interface.</p>

    DOI： 10.1299/jsmemecj.2017.s0520405

    CiNii Research

  45. 漸化式によるVortex-in-Cell法の渦要素―格子補間の高速化とその誤差評価 Reviewed

    出川智啓

    日本計算工学会論文集     2015.2

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    Authorship：Lead author   Language：Japanese   Publishing type：Research paper (scientific journal)  

    DOI： 10.11421/jsces.2015.20150003

  46. Numerical Simulation of Rotating Turbulent Channel Flow by the Vortex in Cell Method Reviewed

    Uchiyama T., Hamada H., Degawa T.

    The Open Transport Phenomena Journal   Vol. 5   page： 30-41   2013

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    Language：English   Publishing type：Research paper (scientific journal)  

  47. Vortex Simulation of Bubble Plume Around a Rectangular Cylinder Reviewed

    Uchiyama T., Degawa T.

    The International Journal of Transport Phenomena   Vol. 11 ( 3 ) page： 219-232   2009

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    Language：English   Publishing type：Research paper (scientific journal)  

  48. Numerical Simulation of Plane Bubble Plume by Vortex Method

    Uchiyama T., Degawa T.

    Journal of Mechanical Engineering Science, Institution of Mechanical Engineers   Vol. 222 ( 7 ) page： 1193-1201   2008

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1243/09544062JMES836

  49. Numerical Simulation of Bubbly Flow around Two Tandem Square-Section Cylinders by Vortex Method Reviewed

    Degawa T., Uchiyama T.

    Journal of Mechanical Engineering Science, Institution of Mechanical Engineers   Vol. 222 ( 2 ) page： 225-234   2008

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    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1243/09544062JMES697

  50. 渦法による平面気泡プルームの数値解析 Reviewed Open Access

    出川智啓, 内山知実

    日本機械学会論文集B編   Vol. 73 ( 727 ) page： 703-710   2007.3

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    Authorship：Lead author   Language：Japanese   Publishing type：Research paper (scientific journal)  

    DOI： 10.1299/kikaib.73.703

    Open Access

  51. 角柱周りの気泡プルームの渦法解析 Reviewed

    出川智啓, 内山知実

    混相流研究の進展   Vol. 2   page： 149-156   2007.3

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    Authorship：Lead author   Language：Japanese   Publishing type：Research paper (scientific journal)  

  52. Vortex Simulation of the Bubbly Flow around a Hydrofoil Reviewed

    Uchiyama T., Degawa T.

    International Journal of Rotating Machinery     2007

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    Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1155/2007/72697

  53. Numerical Simulation for Gas-Liquid Two-Phase Free Turbulent Flow Based on Vortex in Cell Method Reviewed

    Uchiyama T., Degawa T.

    JSME International Journal, Series B   Vol. 49 ( 4 ) page： 1008-1015   2006.11

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    Language：English   Publishing type：Research paper (scientific journal)  

  54. Vortex in Cell法による気液二相自由乱流の数値解析（数値解法と角柱周りの気泡流解析への適用） Reviewed Open Access

    内山知実,出川智啓

    日本機械学会論文集B編   Vol. 72 ( 718 ) page： 1418-1425   2006.6

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    Language：Japanese   Publishing type：Research paper (scientific journal)  

    DOI： 10.1299/kikaib.72.1418

    Open Access

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To the head of Papers.▲

Books 2

  1. エンジニア・研究者のためのWordチュートリアルガイド

    出川智啓（ Role： Sole author）

    株式会社インプレスR&D  2017.12  （ ISBN:987-4-8443-9805-9 ）

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    Total pages：108   Language：Japanese Book type：Scholarly book

  2. エンジニア・研究者のためのWordチュートリアルガイド

    出川 智啓（ Role： Sole author）

    インプレスR&D  2017.12 

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To the head of Books.▲

Presentations 105

  1. 拡張性や再利用性を考慮した格子ボルツマン法のプログラム実装方法について

    出川智啓, 内山知実, 高牟礼光太郎

    第38回数値流体力学シンポジウム  2024.12.11  一般社団法人日本流体力学会

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    Event date： 2024.12

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：東京大学生産技術研究所  

  2. 差分法をいた流体の数値計算プログラム開発における離散化を補助するツールの作成

    出川智啓

    オープンCAEシンポジウム2024  2024.11.9  一般社団法人オープンCAE学会

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    Event date： 2024.11

    Language：Japanese   Presentation type：Oral presentation (general)  

    Venue：九州大学   Country：Japan  

  3. モダンFortranの並列処理とGPGPU Invited

    出川智啓

    第1回モダンなFortranワークショップ  2024.8.31  高性能Fortran推進協議会

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    Event date： 2024.8

    Language：Japanese   Presentation type：Symposium, workshop panel (nominated)  

    Venue：京都大学学術情報メディアセンター   Country：Japan  

  4. Experimental study of mixing of density-stratified fluid in a cylindrical tank by a diagonal jet International conference

    Tomohiro Degawa, Kota Uno, and Tomomi Uchiyama

    International Symposium on Flow Visualisation 18 

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    Event date： 2018.6

    Language：English   Presentation type：Oral presentation (general)  

    Country：Switzerland  

  5. 渦粒子法における多方向再配置について

    出川智啓, 内山知実

    第31回数値流体力学シンポジウム 

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    Event date： 2017.12

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  6. 渦輪による密度成層流体の混合の渦法シミュレーション

    伊藤丈矩, 出川智啓, 内山知実, 角田博之

    第31回数値流体力学シンポジウム 

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    Event date： 2017.12

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  7. 円筒容器内の密度成層流体に対する斜め噴流による混合現象に関する実験的研究 International conference

    出川智啓, 宇野浩太, 内山知実

    可視化情報全国講演会 

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    Event date： 2017.11

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  8. 気泡プルームにより駆動される固体球の挙動に関する研究 International conference

    川崎雄次郎, 出川智啓, 内山知実

    可視化情報全国講演会 

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    Event date： 2017.11

    Language：English   Presentation type：Oral presentation (general)  

    Country：Japan  

  9. Numerical simulation of mixing by a vortex ring launched vertically upward into two-layer density-stratified fluid International conference

    Tomohiro Degawa, Takenori Ito, Tomomi Uchiyama

    The Ninth JSME-KSME Thermal and Fluids Engineering Conference 

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    Event date： 2017.10

    Language：English   Presentation type：Oral presentation (general)  

    Country：Japan  

  10. Numerical simulation of the interaction between a vortex ring and bubble plume by vortex in cell method International conference

    Van Luc Nguyen, Tomohiro Degawa, Tomomi Uchiyama

    The Ninth JSME-KSME Thermal and Fluids Engineering Conference 

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    Event date： 2017.10

    Language：English   Presentation type：Oral presentation (general)  

    Country：Japan  

  11. Numerical simulation of mixing of two-layer density-stratified fluid by vortex rings launched toward the density interface International conference

    Tomohiro Degawa, Tomomi Uchiyama

    The 6th International Conference on Jets, Wakes and Separated Flows 

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    Event date： 2017.10

    Language：English   Presentation type：Oral presentation (general)  

    Country：United States  

  12. Numerical simulation of a vortex ring impacting with a density interface of density-stratified fluids International conference

    Takenori Ito, Tomohiro Degawa, Tomomi Uchiyama, Hiroyuki Tsunoda

    The 6th International Conference on Jets, Wakes and Separated Flows  

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    Event date： 2017.10

    Language：English   Presentation type：Oral presentation (general)  

    Country：United States  

  13. Development of a micro-hydraulic turbine excellent in foreign matter passage performance

    Akira Kaneko, Satoshi Honda, Tomomi Uchiyama, Tomohiro Degawa, Tomoko Okayama, Korakanh Pasomsouk

    International Conference on Materials and Systems for Sustainability 

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    Event date： 2017.9 - 2017.10

    Language：English   Presentation type：Poster presentation  

    Country：Japan  

  14. 密度成層流体中に射出された複数の渦輪による撹拌の数値シミュレーション

    出川智啓, 内山知実

    日本機械学会2017年度年次大会 

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    Event date： 2017.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  15. 密度界面に衝突する渦輪の数値シミュレーション

    伊藤丈矩, 出川智啓, 内山知実, 角田博之

    日本機械学会2017年度年次大会 

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    Event date： 2017.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  16. Flow around a circular cylinder inside a bubble plume International conference

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    Event date： 2017.8

    Language：English   Presentation type：Oral presentation (general)  

    Country：Japan  

  17. 密度成層流体中に射出された渦輪による撹拌の数値シミュレーション

    出川智啓, 内山知実

    混相流シンポジウム2017 

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    Event date： 2017.8

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  18. 気泡プルーム中に置かれた直列２円柱周りの流れ

    鹿野良太, 出川智啓, 内山知実

    混相流シンポジウム2017 

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    Event date： 2017.8

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  19. オブジェクト指向Fortranが拓く（はずだった）新しい世界 Invited

    出川智啓

    第3回並列Fortranに関するシンポジウム 

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    Event date： 2017.6

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  20. Numerical simulation of jet issuing diagonally upward into density-stratified fluid in cylindrical tank International conference

    Tomohiro Degawa, Tomomi Uchiyama, Isao Aozasa, Akira Ishikawa, Koji Motoyama

    The 14th Asian Symposium on Visualization 

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    Event date： 2017.5

    Language：English   Presentation type：Oral presentation (general)  

    Country：China  

  21. Behavior of a jet issuing diagonally upward into two-layer density-stratified fluid in a cylindrical tank International conference

    Tomohiro Degawa, Shota Fukue, Tomomi Uchiyama, Akira Ishikawa, Koji Motoyama

    13th International Symposium on Experimental and Computational Aerothermodynamics of Internal Flows 

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    Event date： 2017.5

    Language：English   Presentation type：Oral presentation (general)  

    Venue：Okinawa Institute of Science and Technology Graduate University   Country：Japan  

  22. セミラグランジュ的渦粒子法について

    出川智啓, 内山知実

    第30回数値流体力学シンポジウム 

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    Event date： 2016.12

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  23. CUDA Fortranにおける並列リダクションの実装について

    出川智啓

    日本機械学会第29回計算力学講演会 

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    Event date： 2016.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  24. 技術系大学におけるGPU教育の一試行

    出川智啓

    オープンCAEシンポジウム2015 

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    Event date： 2015.11

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  25. CUDA Fortranの利便性を高めるFortran言語の機能 Invited

    出川智啓

    Prometech Simulation Conference 2015 

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    Event date： 2015.9

    Language：Japanese   Presentation type：Oral presentation (invited, special)  

    Country：Japan  

  26. オブジェクト指向プログラミングに基づく差分法のCUDA Fortran実装と評価

    出川智啓,中道義之

    第20回計算工学講演会 

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    Event date： 2015.6

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  27. 長岡技術科学大学におけるGPGPU教育の一試行

    出川智啓

    第21回計算工学講演会 

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    Event date： 2015.5 - 2016.6

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  28. Fortranを用いたオブジェクト指向プログラミングに基づくGPU実装に関する一検討

    出川智啓,中道義之

    第28回数値流体力学シンポジウム 

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    Event date： 2014.12

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  29. Fortranを用いたオブジェクト指向プログラミングに基づく渦法の実装に関する一検討 International conference

    出川智啓,中道義之

    第28回数値流体力学シンポジウム 

    　More details

    Event date： 2014.12

    Language：English   Presentation type：Oral presentation (general)  

    Country：Japan  

  30. オブジェクト指向プログラミングに基づいた流体解析プログラムのCUDA Fortran実装の試み

    出川智啓,中道義之

    オープンCAEシンポジウム2014 

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    Event date： 2014.11

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  31. Numerical Simulation of the Behavior for a Vortex Ring Convecting along the Axis of a Rotating Field International conference

    Degawa T., Nakano M., Uchiyama T.

    6th International Conference on Vortex Flows and Vortex Models 

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    Event date： 2014.11

    Language：English   Presentation type：Poster presentation  

    Country：Japan  

  32. Numerical Simulation of Flow around Sports Cycles Using Open Source CFD Software International conference

    Degawa T., Ito T.

    6th International Conference on Vortex Flows and Vortex Models 

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    Event date： 2014.11

    Language：English   Presentation type：Poster presentation  

    Country：Japan  

  33. A Computation Procedure of Initial Field of Vortical Flow and Implementation on a GPU International conference

    Degawa T.

    6th International Conference on Vortex Flows and Vortex Models 

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    Event date： 2014.11

    Language：English   Presentation type：Poster presentation  

    Country：Japan  

  34. オブジェクト指向プログラミングに基づいた渦法のFortran実装

    出川智啓,中道義之

    日本機械学会第92期流体工学部門講演会 

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    Event date： 2014.10

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  35. PGI CUDA FortranとGPU最適化ライブラリの一連携法 Invited International conference

    出川智啓

    Prometech Simulation Conference 2014 

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    Event date： 2014.9

    Language：Japanese   Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Country：Japan  

  36. 渦度方程式に対する時間・空間運動エネルギ保存差分法によって作られる非線形連立方程式の解法について

    出川智啓

    日本機械学会2014年度年次大会 

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    Event date： 2014.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  37. 集団を形成するスポーツサイクル周りに生じる渦流れ : Kinectによる簡易3Dスキヤンシステム構築とOpen Foamによる数値計算

    伊藤丈矩, 出川智啓

    日本機械学会2014年度年次大会 

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    Event date： 2014.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  38. 渦度方程式に対する時間・空間運動エネルギ保存差分法の構築 International conference

    出川 智啓

    日本応用数理学会2014年度年会 

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    Event date： 2014.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  39. 陰的離散化されたBurgers方程式に対するJacobian-Free Newton-Krylov法のKrylov反復に用いる解法の選択について

    出川智啓

    2014年並列／分散／協調処理に関する『新潟』サマー・ワークショップ 

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    Event date： 2014.7

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  40. 渦法への4次精度Hermite積分法の適用

    伊藤丈矩,出川智啓

    第27回数値流体力学シンポジウム 

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    Event date： 2013.12

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  41. コンパクト差分近似されたPoisson方程式に対する非方向分離解法のGPU実装

    出川智啓

    第27回数値流体力学シンポジウム 

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    Event date： 2013.12

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  42. 渦度方程式に対する時間・空間運動エネルギ保存差分法の実装と評価

    出川智啓

    日本機械学会第91期流体工学部門講演会 

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    Event date： 2013.11

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  43. 渦法における時間積分法の改良 International conference

    伊藤丈矩,出川智啓

    日本機械学会第91期流体工学部門講演会 

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    Event date： 2013.11

    Language：English   Presentation type：Oral presentation (general)  

    Country：Japan  

  44. 渦度方程式に対する差分法のオブジェクト指向プログラミングによるCPU実装とGPU移植

    出川智啓,中道義之

    日本機械学会2015年度年次大会 

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    Event date： 2013.9 - 2015.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  45. 渦度方程式に対する時間・空間運動エネルギ保存差分法構築の試み

    出川智啓

    日本機械学会 2013年度年次大会 

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    Event date： 2013.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  46. 渦運動による音波発生の数値シミュレーションのGPU実装

    出川智啓

    GTC Japan 2013 

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    Event date： 2013.8

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

  47. 可変密度流体計算における初期圧力の一計算法とそのGPU実装

    出川智啓

    第18回計算工学講演会 

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    Event date： 2013.6

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  48. 漸化式によるVortex in Cell法の粒子－格子間相互作用の高速化とその誤差評価

    坂代一弥,出川智啓

    第26回数値流体力学シンポジウム 

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    Event date： 2012.12

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  49. 渦度方程式の差分計算における境界条件と運動エネルギの保存性について International conference

    出川智啓

    日本機械学会 第90期流体工学部門講演会 

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    Event date： 2012.11

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  50. Vortex-in-Cell 法の粒子－格子間相互作用に対する逐次更新計算法

    坂代一弥,出川智啓

    日本機械学会 第90期流体工学部門講演会 

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    Event date： 2012.11

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  51. 並列化LU分解を用いたコンパクト差分のGPU実装と性能評価

    出川智啓

    日本機械学会 第25回計算力学講演会 

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    Event date： 2012.10

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  52. 渦度方程式の差分計算における運動エネルギの保存性に関する一考察

    出川智啓

    日本機械学会 2012年度年次大会 

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    Event date： 2012.9

    Language：English   Presentation type：Oral presentation (general)  

    Country：Japan  

  53. 渦法の粒子－格子間相互作用におけるexp(x)の高速計算法の提案と性能評価 International conference

    坂代一弥,出川智啓

    2012年並列／分散／協調処理に関する『鳥取』サマー・ワークショップ 

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    Event date： 2012.8

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  54. GPUによるコンパクト差分の並列計算

    出川智啓

    GTC Japan 2012 

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    Event date： 2012.7

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

  55. コンパクト差分に対する直接解法の並列化とGPUへの実装

    出川智啓

    第17回計算工学講演会 

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    Event date： 2012.5

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  56. PGI CUDA FortranによるCPUコード移植の高速化　～圧縮性流体計算の高速化/GPUに適したスキームの検討～ Invited International conference

    出川智啓

    第３回GPUセミナー　ツールで始めるＧＰＧＰＵ 

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    Event date： 2012.5

    Language：Japanese   Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Country：Japan  

  57. Vortex in Cell法のための圧力計算法

    出川智啓

    第25回数値流体力学シンポジウム 

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    Event date： 2011.12

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  58. Interaction of Bubbles with a Vortex Ring Launched into Bubble Plume International conference

    Uchiyama T., Kusamichi S., Degawa, T.

    11th International Conference on Fluid Control, Measurements, and Visualization 

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    Event date： 2011.12

    Language：English   Presentation type：Oral presentation (general)  

    Country：Taiwan, Province of China  

  59. 気泡プルームの内部に射出された渦輪の挙動

    草道聡,内山知実,出川智啓

    2011年 可視化情報学会全国講演会 

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    Event date： 2011.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  60. GPUへのコンパクト差分の実装と圧縮性流体計算への適用

    出川智啓

    NVIDIA GTC Workshop Japan 2011 

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    Event date： 2011.7

    Language：Japanese   Presentation type：Poster presentation  

    Country：Japan  

  61. GPUを用いた圧縮性流体の2次元数値計算におけるコンパクト差分の実装と評価

    出川智啓

    16回計算工学講演会 

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    Event date： 2011.5

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  62. 双極渦と壁面の衝突角度の変化による渦運動と音響場の関係 International conference

    出川智啓,弘中一也,前川博,高見創

    第24回数値流体力学シンポジウム 

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    Event date： 2010.12

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  63. GPUへのコンパクト差分の実装と圧縮性流体計算への適用 Invited

    出川智啓

    GPUシンポジウム2010 

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    Event date： 2010.10

    Language：English   Presentation type：Oral presentation (invited, special)  

    Country：Japan  

  64. CUDA Fortranを用いた圧縮性・非圧縮性流体の差分法計算 Invited

    出川智啓

    オープンCAE学会主催　第1回並列計算セミナー 

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    Event date： 2010.10

    Language：Japanese   Presentation type：Oral presentation (invited, special)  

    Country：Japan  

  65. 混合型移流項を用いた圧縮性粘性流れの数値計算に対する特性境界条件

    出川智啓,前川博

    日本機械学会2010年度年次大会 

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    Event date： 2010.9

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  66. オイラー・ラグランジュモデルを用いた気泡流の数値計算におけるGPGPUの適用性

    出川智啓

    日本混相流学会年会講演会 

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    Event date： 2010.7

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  67. 渦度方程式とCIP法に基づく平面気泡プルームの数値解析

    竹内優弘,出川智啓,前川博

    日本混相流学会年会講演会 

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    Event date： 2010.7

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  68. 超音速境界層の乱流遷移に及ぼす上流撹乱の影響

    松原洋輔,前川博,高見創,出川智啓

    日本機械学会 関東支部 第16期総会講演会 

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    Event date： 2010.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  69. 渦度方程式の離散化形式が気泡流解析におよぼす影響について

    出川智啓,前川博

    第13回オーガナイズド混相流フォーラム 

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    Event date： 2009.11

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  70. 壁近傍の渦と誘起された二次渦により発生する音響場に関する研究

    弘中一也,前川博,高見創,出川智啓

    日本機械学会山梨講演会講2009 

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    Event date： 2009.10

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  71. 気泡流の数値解析における渦度方程式の離散化形式について

    出川智啓,前川博

    日本混相流学会年会講演会 

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    Event date： 2009.8

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  72. 三次元渦法による平面気泡プルームの数値解析

    内山知実,松村彰士,出川智啓

    本混相流学会年会講演会 

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    Event date： 2008.8

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  73. 渦法による角柱まわりの気泡流の数値解析 International conference

    出川智啓,内山知実

    日本混相流学会年会講演会 

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    Event date： 2008.8

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  74. 渦法による翼周りの気泡流の数値シミュレーション

    出川智啓,内山知実

    第85期日本機械学会流体工学部門講演会 

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    Event date： 2007.11

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  75. Vortex Simulation of the Bubbly Flow around a Hydrofoil International conference

    Degawa T., Uchiyama T.

    9th Asian International Conference on Fluid Machinery 

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    Event date： 2007.10

    Language：English   Presentation type：Oral presentation (general)  

    Country：Korea, Republic of  

  76. Numerical Prediction for the Bubbly Flow around a Hydrofoil by Vortex Method International conference

    Uchiyama T., Degawa T.

    5th Joint ASME/JSME Fluids Engineering Conference 

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    Event date： 2007.8

    Language：English   Presentation type：Oral presentation (general)  

    Country：United States  

  77. Numerical Simulation of Bubbly Flow around a Pair of Tandem Cylinders by Vortex Method International conference

    Degawa T., Uchiyama T.

    6th International Conference on Multiphase Flow 

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    Event date： 2007.7

    Language：English   Presentation type：Oral presentation (general)  

    Country：Germany  

  78. 翼まわりの気泡流の渦法シミュレーション International conference

    出川智啓,内山知実

    日本混相流学会年会講演会 

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    Event date： 2007.6

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  79. 渦法による平面気泡プルームの数値解析 International conference

    出川智啓,内山知実

    日本機械学会第19回計算力学部門講演会 

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    Event date： 2006.11

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  80. Vortex Method for Free-Surface Flow Generated by Submerged Circular Cylinder International conference

    Uchiyama T., Degawa T.

    23rd IAHR Symposium on Hydraulic Machinery and Systems 

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    Event date： 2006.10

    Language：English   Presentation type：Oral presentation (general)  

    Country：Japan  

  81. Vortex Simulation of the Bubble Plume around a Rectangular Cylinder International conference

    Degawa T., Uchiyama T., Takamatsu Y.

    17th International Symposium on Transport Phenomena 

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    Event date： 2006.9

    Language：English   Presentation type：Oral presentation (general)  

    Country：Japan  

  82. Vortex Simulation of the Bubbly Flow around a Square-Section Cylinder International conference

    11th Asian Congress of Fluid Mechanics 

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    Event date： 2006.5

    Language：English   Presentation type：Oral presentation (general)  

    Country：Malaysia  

  83. Numerical Simulation of Plane Bubble Plume by Vortex in Cell Method

    Degawa T., Uchiyama T., Takamatsu Y.

    International Symposium on Frontiers of Computational Science 2005 

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    Event date： 2005.12

    Language：English   Presentation type：Poster presentation  

    Country：Japan  

  84. Numerical Simulation of Bubble-Driven Plume by Vortex Method International conference

    Uchiyama T., Degawa T., Takamatsu Y.

    Third International Conference on Vortex Flows and Vortex Models 

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    Event date： 2005.11

    Language：English   Presentation type：Poster presentation  

    Country：Japan  

  85. Vortex in Cell法による平面気泡プルームの数値解析 International conference

    出川智啓,高松祐介,内山知実

    計算科学シンポジウム 

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    Event date： 2005.10

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  86. Numerical Simulation of the Bubbly Flow around a Rectangular Cylinder by Vortex in Cell Method International conference

    Degawa T., Uchiyama T.

    International Conference on Jets, Wakes and Separated Flows 

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    Event date： 2005.10

    Language：English   Presentation type：Oral presentation (general)  

    Country：Japan  

  87. Vortex in Cell法を用いた気液二相自由乱流の数値解析 International conference

    出川智啓,内山知実

    日本機械学会東海支部第54期総会講演会 

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    Event date： 2005.3

    Language：Japanese   Presentation type：Oral presentation (general)  

    Country：Japan  

  88. Vortex Simulation for Bubble-Laden Free Turbulent Flow International conference

    Uchiyama T., Degawa T., Takamatsu Y.

    Japan-U.S. Seminar on Two-Phase Flow Dynamics 

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    Event date： 2004.12

    Language：English   Presentation type：Poster presentation  

    Country：Japan  

  89. Numerical Simulation for Bubble-Laden Plane Mixing Layer by Vortex in Cell Method International conference

    Uchiyama T., Degawa T.

    Third International Symposium on Two-Phase Flow Modelling and Experimentation 

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    Event date： 2004.9

    Language：English   Presentation type：Oral presentation (general)  

    Country：Italy  

  90. Vortex in Cell法による気泡を含む平面混合層の数値解析

    出川智啓,内山知実

    日本混相流学会年会講演会 

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    Event date： 2004.8

    Language：English   Presentation type：Oral presentation (general)  

    Country：Japan  

  91. Numerical Simulation for Bubble-Laden Free Turbulent Flow by Vortex in Cell Method International conference

    Uchiyama T., Degawa T.

    Fifth International Conference on Multiphase Flow 

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    Event date： 2004.6

    Language：English   Presentation type：Oral presentation (general)  

    Country：Japan  

  92. Interactions Between Vortex Ring and Density Interface of Two Stratified Fluids International conference

    Degawa Tomohiro, Matsuda Yu, Uchiyama Tomomi

    The 3rd International Symposium on Creation of Life Innovation Materials for Interdisciplinary and International Researcher Development  2018.9.25 

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    Presentation type：Poster presentation  

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  93. マイクロバブルプルームの内部における球形粒子の運動と粒子まわりの気泡の挙動

    内山知実, 出川智啓, 川崎雄次郎

    日本機械学会年次大会  2018.9.12 

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    Language：Japanese  

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  94. Numerical Simulation of Flow around an Oscillating Cylinder by Vortex in Cell Method

    Degawa Tomohiro, Gu Qiang

    2018.9.11 

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    Language：Japanese  

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  95. GPGPU Practical Education at a University

    Degawa Tomohiro

    GTC Japan  2018.9.13 

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    Language：Japanese   Presentation type：Poster presentation  

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  96. Numerical Simulation of Cryogenic Gas-Liquid Two-Phase Flow in a Coil Winding of a Superconducting Magnet International conference

    DEGAWA TomohiroDegawa Tomohiro, Obana Tetsuhiro, Uchiyama Tomomi

    The 27th International Toki Conference on Plasma and Fusion Research & The 13th Asia Pacific Plasma Theory Conference  2018.11.20 

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    Language：English   Presentation type：Poster presentation  

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  97. Experimental Study of Mixing of Density-Stratified Fluid in a Cylindrical Tank by a Diagonal Jet

    出川智啓, 宇野浩太, 内山知実

    可視化情報学会全国講演会  2017.11.3 

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    Language：Japanese  

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  98. 渦輪による密度成層流体の混合の渦法シミュレーション

    伊藤丈矩, 出川智啓, 内山知実, 角田博之

    数値流体力学シンポジウム  2017.12.14 

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    Language：Japanese  

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  99. 渦粒子法における多方向再配置について

    出川智啓, 内山知実

    数値流体力学シンポジウム  2017.12.14 

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    Language：Japanese  

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  100. Flow around Two Tandem Circular Cylinders inside a Bubble Plume

    鹿野良太, 出川智啓, 内山知実

    混相流シンポジウム  2017.8.20 

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    Language：Japanese  

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  101. Investigation of the Behavior of a Solid Sphere Driven by Bubble Plume

    川崎雄次郎, 出川智啓, 内山知実

    可視化情報学会全国講演会  2017.11.3 

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    Language：Japanese  

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  102. Numerical Simulation of Mixing Process by a Vortex Ring Launched into Two-Layer Density-Stratified Fluid

    Degawa Tomohiro, Uchiyama Tomomi

    2018.8.10 

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    Language：Japanese  

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  103. 密度界面に衝突する渦輪の数値シミュレーション

    伊藤丈矩, 出川智啓, 内山知実, 角田博之

    日本機械学会年次大会  2017.9.2 

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    Language：Japanese  

    <p>This study simulates the behavior of a vortex ring launched toward the interface of a two-layer density stratified fluid and the resulting mixing phenomena between the fluids. Initially, the density-stratified fluid is in a static condition in a tank. The upper and lower fluids are glycerol aqueous solution and an aqueous solution of potassium dihydrogen phosphate, respectively. The vortex ring with a diameter of 26.4 mm is launched vertically downward from the upper fluid region. It travels by the vertical motion toward the density interface. The Reynolds number, based on the circulation of the vortex ring, is 3500. The simulation conditions are parallel with an experimental work of one of the authors. The vortex in cell method, which was presented by the authors for flow simulations of two-layer density stratified fluid in a prior study, is used. The simulation favorably highlights the collision, deformation and penetration of the vortex ring at the density interface. It also successfully reveals the mixing between the upper and lower fluids induced by the motion of the vortex ring. These simulated results are discussed by comparing with the corresponding experimental ones.</p>

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  104. 密度成層流体中に射出された複数の渦輪による撹拌の数値シミュレーション

    出川智啓, 内山知実

    日本機械学会年次大会  2017.9.2 

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    Language：Japanese  

    <p>This study numerically investigates the mixing of a two-layer density stratified fluid caused by vortex rings. Initially, the density-stratified fluid is in a static condition in a tank. The upper and lower fluids are glycerol aqueous solution and an aqueous solution of potassium dihydrogen phosphate, respectively. Two vortex rings are arranged on a vertical line in the lower fluid, and the axial interval is 80 mm. The diameter of the vortex ring is 26.4 mm, and the Reynolds numbers based on the circulation are 4000, 6000, and 8000. The vortex rings are launched simultaneously in the vertically upward direction. The simulation explores the collision of the vortex rings with the density interface, the entrainment of the fluids into the vortex rings, and the resulting mixing between the fluids. It also clarifies the behavior of each vortex ring, such as the deformation and the interaction with the density interface.</p>

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  105. Numerical Simulation of Mixing Process by a Vortex Ring Launched into Two-Layer Density-Stratified Fluid

    出川智啓, 内山知実

    混相流シンポジウム  2017.8.20 

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    Language：Japanese  

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KAKENHI (Grants-in-Aid for Scientific Research) 1

  1. Study on the generation and transport of bubble cluster by a vortex ring

    Grant number：18K03924  2018.4 - 2021.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (C)

    Uchiyama Tomomi

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    Authorship：Coinvestigator(s) 

    A study searching for the generation and transport of a bubble cluster by a vortex ring is carried out. A vortex ring is launched vertically upward into a water tank by discharging the water from a cylinder mounted at the bottom of the tank with a piston. Air bubbles are injected into the vortex ring from a needle attached to the cylinder outlet. The cylinder inner diameter and the piston stroke are 42.5 mm and 100 mm, respectively. The mean diameter of the bubbles is 3.4 mm. When the strength of the vortex ring is large than a critical value, the bubbles are entrained in the vortex core and form a cluster. The entrained bubbles are successfully transported by the convection of the vortex ring. The convection velocity of the vortex ring is scarcely affected by the entrained bubbles, but the radius is enlarged slightly.

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Industrial property rights 1

  1. (1) 気泡流の解析方法，気泡流シミュレーションプログラム及びそれを記憶した記憶媒体並びに気泡流シミュレーション装置

    内山知実, 出川智啓

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    Application no：特願2004-272011  Date applied：2004.9

    Announcement no：特開2006-085603  Date announced：2006.3

    Patent/Registration no：第4032123号  Date registered：2007.11 

    Country of applicant：Domestic  

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Teaching Experience (Off-campus) 17

  1. 知能機械工学実験

    （The University of Electro-Communications）

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  2. 電子機械設計製作

    （Numazu College of Technology）

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  3. 電子機械設計演習

    （Numazu College of Technology）

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  4. 電子制御工学実験V

    （Numazu College of Technology）

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  5. 電子制御工学実験IV

    （Numazu College of Technology）

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  6. 知能機械基礎実験

    （The University of Electro-Communications）

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  7. 流体力学および演習

    （The University of Electro-Communications）

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  8. 工業英語

    （Numazu College of Technology）

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  9. 工業熱力学

    （Numazu College of Technology）

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  10. 基礎化学実験A

    （The University of Electro-Communications）

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  11. 先端GPGPUシミュレーション工学特論

    （Nagaoka University of Technology）

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  12. プログラミング入門

    （Numazu College of Technology）

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  13. コンピュータリテラシー

    （The University of Electro-Communications）

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  14. オブジェクト指向プログラム設計

    （Numazu College of Technology）

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  15. GPGPU実践基礎工学

    （Nagaoka University of Technology）

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  16. GPGPU実践プログラミング

    （Nagaoka University of Technology）

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  17. C言語基礎演習

    （Numazu College of Technology）

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Social Contribution 7

  1. 流れの夢コンテスト

    Role(s)：Advisor,　Organizing member

    日本機械学会流体工学部門  第21回流れの夢コンテスト  2024.11

  2. 未来の感染対策！？空気を操りウイルスに立ち向かおう！

    Role(s)：Lecturer,　Demonstrator

    名古屋大学未来材料・システム研究所  名古屋大学 夏のテクノロジーフェスティバル  2024.8

  3. 初学者のためのCUDAプログラミングとGPU移植のポイント

    Role(s)：Lecturer

    株式会社日本テクノセンター  2018.10

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    Audience： Researchesrs,　Company

    Type：Seminar, workshop

  4. 初心者のためのGPUプログラミングの基礎と高速化技術

    Role(s)：Lecturer

    株式会社日本テクノセンター  2018.6

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    Audience： Researchesrs,　Company

    Type：Seminar, workshop

  5. 性能を最大限に引き出すためのGPGPUの基礎と高速化技術

    Role(s)：Lecturer

    株式会社日本テクノセンター  2017.11

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    Audience： Researchesrs,　Company

    Type：Seminar, workshop

  6. GPGPUの基礎とプログラミングおよび高速化技術

    Role(s)：Lecturer

    株式会社日本テクノセンター  2017.4

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    Audience： Researchesrs,　Company

    Type：Seminar, workshop

  7. CUDA並列プログラミングの基礎講座

    Role(s)：Lecturer

    株式会社日本テクノセンター  2015.1

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    Audience： Researchesrs,　Company

    Type：Seminar, workshop

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