Organization
Graduate School of Engineering Professor
Graduate School
Graduate School of Engineering
Undergraduate School
School of Engineering Mechanical and Aerospace Engineering
Title
Professor
Contact information
ITO Yasumasa
Degree 1
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博士（工学） （ 2007.3 京都大学 ）
Research Interests 9
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Shear flow
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Transport phenomena
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Mixing layers
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Jets
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Turbulence
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Zinc battery
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gastroenterological flow
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Blood flow
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Flow control
Research Areas 2
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Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Thermal engineering
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Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Fluid engineering
Research History 6
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Nagoya University Dept. of Mechanical Systems Engineering (Mechanical Science and Engineering) Associate professor
2015.5
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Nagoya University Designated associate professor
2013.7 - 2015.4
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Nagoya University Green Mobility Collaborative Research Center Associate professor
2012.7
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Nagoya University Designated lecturer
2012.2 - 2013.6
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Senior Research Associate, Dept. of Chemical Engineering, City University of New York, The CUNY Energy Institute Chief Researcher
2008.4 - 2012.1
Country：United States
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京都大学 大学院工学研究科機械工学（機械理工学）専攻 助教
2002.4 - 2008.3
Country：Japan
Education 3
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Kyoto University Graduate School, Division of Engineering Department of Mechanical Engineering
2001.4 - 2002.3
Country： Japan
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Kyoto University Graduate School, Division of Engineering
1999.4 - 2001.3
Country： Japan
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Kyoto University Faculty of Engineering Department of Mechanical and Systems Engineering
1994.4 - 1999.3
Country： Japan
Professional Memberships 3
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日本機械学会
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電気化学会
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日本流体力学会
Committee Memberships 13
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日本機械学会年次大会 セッションオーガナイザ
2022.4
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ASME-JSME-KSME流体工学部門合同国際会議 実行委員
2021.9
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日本機械学会流体工学部門講演会WG 主査
2021.4 - 2023.3
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日本機械学会流体工学部門講演会WG 幹事
2021.4 - 2022.3
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日本機械学会流体工学部門 総務委員
2020.7 - 2021.3
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日本機械学会年次大会 運営委員
2019.4 - 2021.3
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日本機械学会流体工学部門講演会WG 運営委員
2019.4 - 2021.3
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日本機械学会東海支部 運営委員
2019.4 - 2020.3
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Journal of Energy, Environment, and Sustainability Associate Editor
2019.1
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日本機械学会東海支部 講演会OSオーガナイザ
2018.4
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日本流体力学会 講演会OSオーガナイザ
2017.4
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日本流体力学会 代議員
2017.4 - 2021.3
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日本流体力学会中部支部 庶務幹事
2016.4 - 2019.3
Awards 3
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特別貢献賞
2021.3 日本機械学会東海支部
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日本機械学会東海支部 研究賞
2019.3 日本機械学会東海支部 ヴォルテクスジェネレータによる噴流の混合拡散制御
伊藤靖仁，三浦健介，酒井康彦，岩野耕治
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日本機械学会 研究奨励賞
2008 日本機械学会
Papers 98
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数値シミュレーションによる二次元翼列の翼間流れにおけるはく離渦の特性に関する研究 Reviewed
瀬戸 孝祐, 岩野 耕治, 伊藤 靖仁, 酒井 康彦, 小坂 翔, 吉田 憲司
日本機械学会論文集 Vol. 90 ( 930 ) page： p. 23-00223 2024.2
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Optimisation of initial velocity distribution of jets for entrainment and diffusion control using deep reinforcement learning Reviewed
International Journal of Heat and Mass Transfer Vol. 218 page： 124788 2024
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Appearance of the-5/3 scaling law in spatially intermittent flows with strong vortex shedding
Zhou Yi, Nagata Koji, Ito Yasumasa, Sakai Yasuhiko, Hattori Yuji
PHYSICS OF FLUIDS Vol. 35 ( 4 ) 2023.4
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Scale-by-scale Analysis of Interscale Scalar Transfer in Grid Turbulence with Mean Scalar Gradient Invited Reviewed
Muyang Wang, Takuya Yurikusa, Koji Iwano, Yasuhiko Sakai, Yasumasa Ito, Yi Zhou, and Yuji Hattori
Physics of Fluids 2023
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Spatial distribution of coherent structures in a self-similar axisymmetric turbulent wake Reviewed International coauthorship
Yin W., Tao S., Nagata K., Ito, Y., Sakai, Y., Yi Zhou
Physical Review Fluids Vol. 8 page： 084603 2023
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Interscale transfer of turbulent energy in grid-generated turbulence with low Reynolds numbers Reviewed International coauthorship
Muyang Wang, Takuya Yurikusa, Yasuhiko Sakai, Koji Iwano, Yasumasa Ito, Yi Zhou, Yuji Hattori
Int. J. Heat Fluid Flow Vol. 97 page： 109031 2022.10
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Effect of artificial large-scale structures on bursting phenomenon in turbulent boundary layer
Chen Xiaonan, Iwano Koji, Sakai Yasuhiko, Ito Yasumasa
PHYSICS OF FLUIDS Vol. 34 ( 8 ) 2022.8
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The meandering bend features of large-scale structures and the related coherent structures
Chen Xiaonan, Iwano Koji, Sakai Yasuhiko, Ito Yasumasa
INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW Vol. 93 2022.2
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CFD Study on the Efficacy of Flow Diverter Stent Placement for Cerebral Aneurysms
Ito Y., Cho I, Sakai Y., Iwano K.
JOURNAL OF APPLIED FLUID MECHANICS Vol. 14 ( 5 ) page： 1547 - 1558 2021.9
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Effect of large-scale structures on bursting phenomenon in turbulent boundary layer
Chen, XN; Iwano, K; Sakai, Y; Ito, Y
INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW Vol. 89 2021.6
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Power spectrum of high Schmidt number scalar in a turbulent jet at a moderate Reynolds number
Iwano, K; Hosoi, J; Sakai, Y; Ito, Y
EXPERIMENTS IN FLUIDS Vol. 62 ( 6 ) 2021.6
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Energy transfer in turbulent flows behind two side-by-side square cylinders
Zhou, Y; Nagata, K; Sakai, Y; Watanabe, T; Ito, Y; Hayase, T
JOURNAL OF FLUID MECHANICS Vol. 903 2020.11
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Momentum Diffusion Near Jet Exit in a Round Jet Controlled by Half Delta-Wing Tabs Reviewed
Yasumasa Ito, Kosuke Naganawa, Yasuhiko Sakai, Koji Iwano
Flow, Turbulence and Combustion Vol. 105 page： 715-734 2020.4
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Intestinal flow after anastomotic operations in neonates
Yasumasa Ito, Koichiro Asato, Inhyeok Cho, Yasuhiko Sakai, Koji Iwano, Takahisa Tainaka, Hiroo Uchida
Computers in Biology and Medicine Vol. 118 page： 103471 2020.3
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P. Kadu, Y. Sakai, Y. Ito, K. Iwano, M. Sugino, T. Katagiri, T. Hayase, K. Nagata,
Phys. Fluids Vol. 32 ( 1 ) page： 015106 2020.1
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Semi in-situ measurement of zincate ion concentration near zinc anode using background-oriented Schlieren technique
Yasumasa Ito, Xiao Liang, Kohei Ishikawa, Toru Ujihara, Yasuhiko Sakai, Koji Iwano
Physical Review Research Vol. 1 ( 3 ) page： 033162 2019.12
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Kadu, PA; Sakai, Y; Ito, Y; Iwano, K; Sugino, M; Katagiri, T; Nagata, K
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER Vol. 142 2019.10
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Three-dimensional visualization of destruction events of turbulent momentum transfer in a plane jet
Takahashi, M; Iwano, K; Sakai, Y; Ito, Y
PHYSICS OF FLUIDS Vol. 31 ( 10 ) 2019.10
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Experimental investigation on destruction of Reynolds stress in a plane jet
Takahashi Mamoru, Iwano Koji, Sakai Yasuhiko, Ito Yasumasa
EXPERIMENTS IN FLUIDS Vol. 60 ( 3 ) 2019.3
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光ファイバLIF法による高空間分解能・高SN比濃度計測
岩野 耕治, 鈴木 航司, 酒井 康彦, 伊藤 靖仁
可視化情報学会論文集 Vol. 39 page： 28-34 2019.2
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Dissipation scaling in the transition region of turbulent mixing layer
Takamure, K; Sakai, Y; Ito, Y; Iwano, K; Hayase, T
INTERNATIONAL JOURNAL OF HEAT AND FLUID FLOW Vol. 75 page： 77 - 85 2019.2
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乱流混合層中の大規模構造が乱流プラントル数に及ぼす影響
高牟礼 光太郎, 酒井 康彦, 伊藤 靖仁, 岩野 耕治，
可視化情報学会論文集 Vol. 39 page： 1-10 2019.1
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The relationships between crystal orientation and morphology of electrode from a perspective of crystal growth
Kohei Ishikawa, Takato Mitsuhashi, Yasumasa Ito, Yukihisa Takeuchi, Shuta Harada, Miho Tagawa, Toru Ujihara
Journal of the Japanese Association of Crystal Growth Vol. 46 page： 48-1-8 2019
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EFFECT OF THE LARGE-SCALE STRUCTURE ON TURBULENT PRANDTL NUMBER IN A TURBULENT SHEAR LAYER
Takamure, K; Sakai, Y; Ito, Y; Iwano, K
PROCEEDINGE OF THE ASME/JSME/KSME JOINT FLUIDS ENGINEERING CONFERENCE, 2019, VOL 1 2019
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Measurement of fluctuating temperature and POD analysis of eigenmodes in a heated planar jet
Terashima Osamu, Sakai Yasuhiko, Ito Yasumasa
EXPERIMENTAL THERMAL AND FLUID SCIENCE Vol. 92 page： 113 - 124 2018.4
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Enhancement and suppression of mixing and diffusion in an axisymmetric jet by half delta-wing tabs Reviewed
Y. Ito, K. Miura, Y. Sakai, K. Iwano
International Journal of Heat and Mass Transfer Vol. 118 page： 1218-1230 2018.3
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Enhancement and suppression of mixing and diffusion in an axisymmetric jet by half delta-wing tabs
Ito, Y; Miura, K; Sakai, Y; Iwano, K
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER Vol. 118 page： 1218 - 1230 2018.3
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Momentum transport process in the quasi self-similar region of free shear mixing layer
Takamure K., Ito Y., Sakai Y., Iwano K., Hayase T.
PHYSICS OF FLUIDS Vol. 30 ( 1 ) 2018.1
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Combined probe for simultaneous measurement of velocity, temperature, and pressure
Takahashi, M; Iwano, K; Sakai, Y; Ito, Y
TURBULENCE HEAT AND MASS TRANSFER 9 (THMT-18) page： 259 - 269 2018
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Changes in divergence-free grid turbulence interacting with a weak spherical shock wave
Kitamura, T; Nagata, K; Sakai, Y; Sasoh, A; Ito, Y
PHYSICS OF FLUIDS Vol. 29 ( 6 ) 2017.6
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Crystal Orientation Dependence of Precipitate Structure of Electrodeposited Li Metal on Cu Current Collectors
Ishikawa Kohei, Ito Yasumasa, Harada Shunta, Tagawa Miho, Ujihara Toru
CRYSTAL GROWTH & DESIGN Vol. 17 ( 5 ) page： 2379-2385 2017.5
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Effects of grid geometry on non-equilibrium dissipation in grid turbulence
Nagata Koji, Saiki Teppei, Sakai Yasuhiko, Ito Yasumasa, Iwano Koji
PHYSICS OF FLUIDS Vol. 29 ( 1 ) 2017.1
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二次元乱流噴流における速度勾配と変動 静圧の同時計測 Reviewed
高橋 護, 岩野 耕治, 酒井 康彦, 伊藤 靖仁
日本機械学会論文集 Vol. 83 page： 850 2017
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多翼送風機の翼間の流れ構造と発生音に関する実験的研究 Reviewed
岩野耕治,後藤優典,深尾勇也,酒井康彦,伊藤靖仁,長田孝二,酒井雅晴 ,落合 利徳 ,小田修三
日本機械学会論文集 Vol. 83 page： 849 2017
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Changes in divergence-free grid turbulence interacting with a weak spherical shock wave Reviewed
T. Kitamura, K. Nagata, Y. Sakai, A. Sasoh, Y. Ito
Physics of Fluids Vol. 29 page： 065114 2017
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Modification of hemodynamics in basilar artery aneurysm by the single and Y stent placement
Matsuda Tatsuya, Ito Yasumasa, Masunaga Kohei, Sakai Yasuhiko, Irie Keiko, Iwano Koji, Nagata Koji
TECHNOLOGY AND HEALTH CARE Vol. 25 ( 5 ) page： 831-842 2017
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半デルタ翼形状を有するボルテックスジェネレータによる軸対称噴流の制御に関する研究 (第2報：温度場の統計量による評価)
三浦健介，伊藤靖仁，酒井康彦，岩野耕治，長田孝二
日本機械学会論文集 Vol. 82 ( 838 ) page： 16-00087 2016.6
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Turbulent mixing of a passive scalar in grid turbulence
Ito, Y., Watanabe, T., Nagata, K., Sakai, Y.,
Physica Scripta Vol. 91 ( 7 ) page： 074002 2016.6
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Implicit large eddy simulation of a scalar mixing layer in fractal grid turbulence Reviewed
T. Watanabe, Y. Sakai, K. Nagata, Y. Ito, T. Hayase
Physica Scripta Vol. 91 ( 7 ) page： 074007 2016.6
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Simultaneous measurement of velocity and pressure near theturbulent/non-turbulent interface of a planar turbulent jet
Terashima, O., Sakai, Y., Nagata, K., Ito, Y., Onishi, K., Shouji, Y.,
Experimental Thermal and Fluid Science Vol. 75 page： 137-146 2016
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Rapid distortion theory analysis on the interaction between homogeneous turbulence and a planar shock wave
Kitamura, T., Nagata, K., Sakai, Y., Sasoh, A., Ito, Y.
Journal of Fluid Mechanics page： Accepted 2016
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Enstrophy production and dissipation in developing grid-generated turbulence
Zhou, Y., Nagata, K., Sakai, Y., Ito, Y., Hayase, T.
Physics of Fluids Vol. 28 page： 025113 2016
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Large eddy simulation study of turbulent kinetic energy and scalar variance budgets and turbulent/non-turbulent interface in planar jets
Watanabe, T., Sakai, Y., Nagata, K., Ito, Y.
Fluid Dynamics Research Vol. 48 page： 021407 2016
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Spatial Evolution of the Helical Behavior and the 2/3 Power-Law in Single-Square-Grid Generated Turbulence
Zhou, Y., Nagata, K., Sakai, Y., Ito, Y., Hayase, T.
Fluid Dynamics Research Vol. 48 page： 0221404 2016
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LES–Lagrangian particle method for turbulent reactive flows based on the approximate deconvolution model and mixing model
Watanabe, T., Sakai, Y., Nagata, K., Ito, Y., Hayase, T.
Journal of Computational Physics Vol. 294 page： 127-148 2015
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Turbulent mixing of passive scalar near turbulent and non-turbulent interface in mixing layers
Watanabe, T., Sakai, Y., Nagata, K., Ito, Y., Hayase, T.
Physics of Fluids Vol. 27 page： 085109 2015
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半デルタ翼形状を有するボルテックスジェネレータによる軸対称噴流の制御に関する研究 (第1報：速度場の統計量による評価)
三浦健介，伊藤靖仁，酒井康彦，岩野耕治，長田孝二
日本機械学会論文集 Vol. 81 page： 15-00306 2015
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Dynamics and geometry of developing planar jets based on the invariants of the velocity gradient tensor
Wu, N., Sakai, Y., Nagata, K., Ito, Y.
Journal of Hydrodynamics Vol. 27 page： 894-906 2015
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乱流境界層の結合速度統計量に及ぼす円柱後流による主流乱れの影響
滝崎貴雄，晝田紘佑，長田孝二，酒井康彦，伊藤靖仁
日本機械学会論文集 Vol. 81 page： 14-00582 2015
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On the evolution of the invariants of the velocity gradient tensor in single square-grid-generated turbulence
Zhou, Y., Nagata, K., Sakai, Y., Ito, Y., Hayase, T.
Physics of Fluids Vol. 27 page： 075107 2015
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Effects of a Grid on Chemical Reaction in Shear Mixing Layer
Ito, Y., Sakai, Y., Nagata, K.
Chemical Engineering and Technology Vol. 37 page： 2103-2108 2015
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Non-uniform electrodeposition of zinc on the (0001)-oriented substrate
Mitsuhashi, T., Ito, Y., Takeuchi, Y., Harada, S., Ujihara, T.
Thin Solid Films Vol. 590 page： 207-213 2015
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On the velocity and pressure statistics during the flapping motion in a planar turbulent jet
Terashima, O., Sakai, Y., Nagata, K., Ito, Y., Onishi, K., Shouji, Y.
International Journal of Heat and Fluid Flow Vol. 53 page： 56-67 2015
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On the turbulent energy transport related to the coherent structures in a planar jet
Terashima, O., Sakai, Y., Goto, Y., Onishi, K., Nagata, K., Ito, Y.
Experimental Thermal and Fluid Science Vol. 68 page： 697-710 2015
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反応を伴う液相二次元噴流における乱流・非乱流界面近傍の条件付統計量
内藤尭啓, 渡邉智昭, 酒井康彦, 長田孝二, 伊藤靖仁
日本機械学会論文集 Vol. 80 page： FE0228 2014
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Influence of Reynolds Number on Coherent Structure, Flow Transition, and Evolution of the Plane Jet
Wu, N., Sakai, Y., Nagata, K., Ito, Y., Terashima, O., Hayase, T.
Journal of Fluid Science and Technology Vol. 9 page： JSFT0013 2014
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Experimental Verification of the Turbulence Models for the Pressure Diffusion Process in a Turbulent Plane Jet
Terashima, O., Sakai, Y., Nagata, K., Ito, Y., Onishi, K.
International Journal of Mechanical Sciences Vol. 89 page： 12-20 2014
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Vortex Stretching and Compression near the Turbulent/Non-turbulent Interface in a Planar Jet
Watanabe, T., Sakai, Y., Nagata, K., Ito, Y., Hayase, T.
Journal of Fluid Mechanics Vol. 758 page： 754-785 2014
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Enstrophy and Passive Scalar Transport Near the Turbulent/Non-Turbulent Interface in a Turbulent Planar Jet Flow
Watanabe, T., Sakai, Y., Nagata, K., Ito, Y., Hayase, T.
Physics of Fluids Vol. 26 page： 105103 2014
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Reactive Scalar Field Near the Turbulent/ Non-Turbulent Interface in a Planar Jet with a Second-Order Chemical Reaction
Watanabe, T., Sakai, Y., Nagata, K., Ito, Y., Hayase, T.
Physics of Fluids Vol. 26 page： 105111 2014
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Wavelet Analysis of Coherent Vorticity near the Turbulent/Non-Turbulent Interface in a Turbulent Planar Jet
Watanabe, T., Sakai, Y., Nagata, K., Ito, Y., Hayase, T.
Physics of Fluids Vol. 26 page： 095105 2014
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Experimental Study on the Reaction Rate of a Second Order Chemical Reaction in a Planar Liquid Jet
Watanabe, T., Sakai, Y., Nagata, K., Terashima, O. Ito, Y.
AIChE Journal Vol. 60 page： 3969-3988 2014
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Numerical study on a boundary layer with heat transfer affected by a wake of a square bar
Xia, S., Ito, Y., Nagata, Y., Sakai, H., Hayase, T.
Journal of Fluid Science and Technology Vol. 9 page： JSFT0061 2014
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DNS Study on the Development of Boundary Layer with Heat Transfer under the Effects of External and Internal Disturbances
Xia, S., Ito, Y., Nagata, K., Sakai, Y., Suzuki, H., Terashima, O., Hayase, T.
Journal of Fluid Science and Technology Vol. 9 page： JSFT0005 2014
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Experimental Study on the Schmidt Number Dependence of the Scalar Derivative Statistics in a Liquid Axisymmetric Jet
Takeichi, T., Sakai, Y., Terashima, O., Nagata, K., Ito, Y., Yokoi, M.
Journal of Fluid Science and Technology Vol. 9 page： JSFT0030 2014
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On the Measurement of Wall Shear Stress with a Patch-Type Micro-Fabricated Hot-Film Sensor
Sawada, T., Terashima, O., Sakai, Y., Nagata, K., Shikida, M., Ito, Y.,Muramatsu, S.
Journal of Fluid Science and Technology Vol. 9 page： JSFT0029 2014
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Concentration Measurement in a Planar Liquid Jet with a Chemical Reaction by Using the Improved Concentration Measurement System Based on the Light Absorption Spectrometric Method
Naito, T., Watanabe, T., Sakai, Y., Nagata, K., Ito, Y.
Journal of Fluid Science and Technology Vol. 9 page： JSFT0041 2014
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The Effects of Inflow Conditions on Reactive-Diffusive Mechanism in a Shear Mixing Layer at Low Reynolds Number
Ito, Y., Nagata, K., Sakai, Y.
Experimental Thermal and Fluid Science Vol. 55 page： 166-173 2014
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Study on the Concentration Measurement in a Liquid Jet by the Optical Fiber LIF Method
Takeichi, T., Sakai, Y., Terashima, O., Nagata, K., Ito, Y.
Journal of Japanese Society for Experimental Mechanics Vol. 14 page： s30-s35 2014
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Measurement of Wall Shear Stress Fluctuation with the Micro-fabricated Hot-film sensor in a Boundary Layer of a Wall Jet
Sawada, T., Terashima, O., Sakai, Y., Nagata, K., Shikida, M., Ito, Y.
Journal of Japanese Society for Experimental Mechanics Vol. 14 page： s13-s18 2014
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Development of Turbulence behind the Single Square Grid
Zhou, Y., Nagata, K., Sakai, Y., Suzuki, H., Ito, Y., Terashima, O., Hayase, T.
Physics of Fluids Vol. 26 page： 045102 2014
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Relevance of Turbulence behind the Single Square Grid to Turbulence Generated by Regular- and Multiscale-Grids
Zhou, Y., Nagata, K., Sakai, Y., Suzuki, H., Ito, Y.
Physics of Fluids Vol. 26 page： 075105 2014
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反応を伴う液相二次元噴流における乱流・非乱流界面近傍の条件付統計量
内藤尭啓, 渡邉智昭, 酒井康彦, 長田孝二, 伊藤靖仁
日本機械学会論文集（B 編） Vol. 80 page： FE0228 2014
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速度・圧力多点同時計測結果へのPOD-LSE複合解析の適用による二次元噴流の乱れエネルギ輸送の評価
大西一弘，寺島修，酒井康彦，長田孝二，伊藤靖仁
日本機械学会論文集(B編) Vol. 80 page： FE010 2014
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Improvement of the Constant Temperature Anemometer and Measurement of Energy Spectra in a Turbulent Jet
Terashima, O, Sakai, Y., Onishi, K., Nagata, K., Ito, Y., Miura, K.
Flow Measurement and Instrumentation Vol. 35 page： 92-98 2014
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Simultaneous Measurement of All Three Velocity Components and Pressure in a Plane Jet
Terashima, O., Onishi, K., Sakai, Y., Nagata, K., Ito, Y.
Measurement Science and Technology Vol. 25 page： 055301 2014
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Development and Testing of an Economic Grid-Scale Flow-Assisted Zinc/Nickel-Hydroxide Alkaline Battery
Turney, D., Shmukler, M., Galloway, K., Klein, M., Ito, Y., Sholklapper, T., Nyce, M., Gallaway, J., Banerjee, S
Journal of Power Sources Vol. 264 page： 49-58 2014
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Momentum and Mass Transfer in Developing Plane Mixing Layers
Ito, Y., Nagata, K., Sakai, Y., Terashima, O.
Experimental Thermal and Fluid Science Vol. 51 page： 28-36 2013
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熱線流速計による乱流噴流の計測 (定温度化回路が計測精度に及ぼす影響)
大西一弘，寺島修，酒井康彦，長田孝二，伊藤靖仁
日本実験力学会論文集 Vol. 13 page： 35-39 2013
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タンデム型熱線プローブによる二次元翼周りのはく離流計測
古田浩貴，寺島修，石黒俊輔，酒井雅晴，酒井康彦，長田孝二，伊藤靖仁，大西一弘
日本実験力学会論文集 Vol. 13 page： 40-45 2013
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乱流中の速度三成分と変動圧力の同時計測
大西一弘，寺島修，酒井康彦，長田孝二，伊藤靖仁
日本機械学会論文集（B編） Vol. 79 page： 541-553 2013
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正方格子およびフラクタル格子乱流場における高シュミット数スカラ混合に関する実験的研究
星野 晃一, 長田 孝二, 酒井 康彦, 鈴木 博貴, 鵜飼 涼太, 寺島 修, 伊藤靖仁
日本機械学会論文集（B編） Vol. 79 page： 304-316 2013
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Visualization of Turbulent Reactive Jet by Using Direct Numerical Simulation
Watanabe, T., Sakai, Y., Nagata, K., Terashima, O., Ito, Y.
International Journal of Modeling, Simulation, and Scientific Computing Vol. 4 page： 1311001 2013
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直接数値計算法と確率密度関数法による反応性二次元噴流の数値計算
渡邉智昭，酒井康彦，長田孝二，寺島修，伊藤靖仁，早瀬敏幸
日本機械学会論文集(B編) Vol. 79 page： 2434-2445 2013
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DNSによる反応性物質濃度の乱流シュミット数・乱流拡散係数に関する研究
渡邉智昭，酒井康彦，長田孝二，寺島修，伊藤靖仁，早瀬敏幸
日本機械学会論文集(B編) Vol. 80 page： 13-00533 2013
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An Indicator of Zinc Morphology Transition in Alkaline Electrolyte
Ito, Y., Wei, X., Desai, D., Steingart, D., Banerjee, S.
Journal of Power Sources Vol. 211 page： 119-128 2012
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Gas Evolution in a Flow-Assisted Zinc-Nickel Oxide Battery
Ito, Y., Nyce, M., Plivelich, R., Klein, M., Banerjee, S
Journal of Power Sources Vol. 196 page： 6583-6587 2011
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Zinc Morphology in Zinc–Nickel Flow Assisted Batteries and Impact on Performance
Ito, Y., Nyce, M., Plivelich, R., Klein, M., Steingart, D
Journal of Power Sources Vol. 196 page： 2340-2345 2011
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Mass Transfer across the Gas-Liquid Interface in a Capillary Tube
Ito, Y., Komori, S
Journal of Chemical Engineering of Japan Vol. 41 page： 947-952 2008
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せん断混合層流の混合反応に及ぼす格子の設置位置の影響
伊藤靖仁，小森 悟
日本機械学会論文集（B編） Vol. 74 page： 826-832 2008
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円柱形粒子の分散を伴う格子乱流場における粒子と流体の運動機構
伊藤靖仁，山名浩史，小森 悟
日本機械学会論文集（B 編） Vol. 74 page： 1770-1776 2008
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A Vibration Technique for Promoting Liquid Mixing and Reaction in a Microchannel
Ito, Y., Komori, S.
AIChE Journal Vol. 52 page： 3011-3017 2006
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微細管内での気液間物質移動
伊藤靖仁，小森 悟
日本機械学会論文集（B 編） Vol. 72 page： 584-589 2006
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マイクロ流路内の流体混合反応に及ぼす振動の効果
伊藤靖仁，竹中直史，小森 悟
日本機械学会論文集(B編) Vol. 71 page： 862-868 2005
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発達中の液相混合層における運動量および物質の輸送機構
伊藤靖仁，小森 悟
日本機械学会論文集(B編) Vol. 71 page： 15-22 2005
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化学反応を伴う液相混合層内の混合と反応に及ぼすトリップワイヤおよび格子の効果
伊藤靖仁，小森 悟
日本機械学会論文集（B 編） Vol. 70 page： 921-928 2004
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The Effects of High-Frequency Ultrasound on Turbulent Liquid Mixing with a Rapid Chemical Reaction
Ito, Y., Nagata, K., Komori, S
Physics of Fluids Vol. 14 page： 4362-4371 2002
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超音波による乱流混合反応促進
伊藤靖仁，長田孝二，小森悟
日本機械学会論文集（B 編） Vol. 68 page： 79-85 2002
Books 2
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機械工学年鑑2017 第7章 流体工学 7.13節 生体流れ・医療応用
伊藤靖仁（ Role： Sole author）
日本機械学会 2017.8
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Mixing and Diffusion in Regular/Fractal Grid Turbulence (in Fractal Flow Design: How to Design Bespoke Turbulence and Why)
Sakai, Yasuhiko, Vassilicos, Christos (Eds.)（ Role： Joint author）
Springer 2016.7 （ ISBN:978-3-319-33310-6 ）
Presentations 1
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噴流場における輸送現象の基礎と 噴流制御に向けた最適初期条件の同定 Invited
伊藤靖仁
NiTech-NIFS第30回共同セミナー 2024.3.8 名古屋工業大学，核融合研
Research Project for Joint Research, Competitive Funding, etc. 1
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電極界面の平衡性制御に基づく長寿命亜鉛蓄電池の研究開発
2020.8 - 2021.12
研究助成
伊藤靖仁
Grant type：Competitive
Grant amount：\1500000
KAKENHI (Grants-in-Aid for Scientific Research) 4
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Grant number：22K03937 2022.4 - 2025.3
Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)
Authorship：Coinvestigator(s)
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高シュミット数物質の乱流混合における微小スケール普遍性の実験的検証
Grant number：21K03851 2021.4 - 2024.3
科学研究費助成事業 基盤研究(C)
岩野 耕治, 酒井 康彦, 伊藤 靖仁
Authorship：Coinvestigator(s)
分子拡散が起こりづらい（=高シュミット数）物質が乱流中で混合されるとき，微小スケールに普遍的な濃度揺らぎの構造（粘性対流小領域）が存在することが理論的に予想されている．長年，この予想の検証が試みられてきたが，計測装置の空間分解能不足や，スパコンの計算性能不足のため，未だに普遍性の実証には至っていない．本研究では，極めて高い空間分解能を持つ濃度計測装置を用いて，様々な乱流混合場で高シュミット数物質の濃度変動を計測することで，粘性対流小領域の存在，及びその普遍性を検証する．
分子拡散が起こりづらい（=高シュミット数）物質が乱流中で混合されるとき，微小スケールに普遍的な濃度揺らぎの構造（粘性対流小領域）が存在することが理論的に予想されている．長年，この予想の検証が試みられてきたが，計測装置の空間分解能不足や，スパコンの計算性能不足のため，未だに普遍性の実証には至っていない．本研究では，申請者の開発した極めて高い空間分解能を持つ光ファイバ型LIF濃度計測装置を用いて，様々な乱流混合場で高シュミット数物質の濃度変動を計測することで，粘性対流小領域の存在，及びその普遍性を検証することを目的としている．
本年度は，水槽内の静止流体中に染料溶液を噴出し，軸対称噴流中での染料の濃度変動を，上記の濃度計測装置を用いて計測する実験を実施した．計測対象は高シュミット数（3000程度）の蛍光染料である．実験では噴流レイノルズ数を一桁以上変化させ，乱流物質混合場に及ぼすレイノルズ数の影響を調査した．その結果，レイノルズ数が大きいほど粘性対流小領域における濃度変動パワースペクトルの傾きが-1（=理論予測値）に近づくことが明らかとなった．一方，粘性対流小領域よりも微小スケールに存在する粘性拡散小領域における無次元濃度変動パワースペクトルは，レイノルズ数によらず普遍的な形状を持つことが明らかとなった．また，次年度に実施する予定の格子乱流中での濃度変動計測実験に向けて，格子乱流水路の製作と予備実験を実施した．その結果，テストセクション内に平均速度と平均濃度が一様な乱流物質混合場を生成することができた．
当初の計画通り，軸対称噴流場における高シュミット数物質の濃度変動計測を実施でき，乱流物質混合場の微小スケールに関して複数の新規知見が得られたため．
今後は，当初の計画通り，格子乱流場において高シュミット数物質の濃度変動計測を行う予定である．格子乱流水路に平均速度勾配生成装置と平均濃度勾配生成装置を新たに設置することにより，乱流物質混合場の微小スケール（粘性対流小領域）に及ぼす平均速度勾配と平均濃度勾配の影響を明らかにする．さらにそれらの影響を組み込んだ高精度乱流モデルの開発を行う． -
Fundamental study on transport phenomena on jets toward their control by streamwise vortices
Grant number：20K04264 2020.4 - 2023.3
Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C)
Ito Yasumasa
Authorship：Principal investigator
Grant amount：\4290000 （ Direct Cost: \3300000 、 Indirect Cost：\990000 ）
The research aimed to elucidate the fundamental structure of turbulent flows centered around jets and control the mixing and diffusion through innovative design of the initial velocity distribution of the jet. The study primarily relied on numerical simulations. Specifically, it aimed to reveal the turbulent energy and scalar transport mechanisms across vortex scales in quasi-uniform isotropic turbulence and shear turbulent flows. The research also involved jet control using vortex generators and optimal control of the initial jet velocity distribution through deep reinforcement learning.
The results identified desirable initial velocity distributions for promoting or suppressing mixing and diffusion in jets. Furthermore, the physical mechanisms behind them were elucidated.
Overall, the research contributed to the understanding of turbulent flows and provided insights into controlling mixing and diffusion. -
Grant number：18H01369 2018.4 - 2021.3
Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B)
Sakai Yasuhiko
Authorship：Coinvestigator(s)
In this study, scalar mixing and second-order chemical reactions near the turbulent/nonturbulent interface in the liquid phase were investigated both experimentally and numerically. As a result, it was found experimentally that the scaling law of inter-scale transport of scalar fluctuations in the near-grid region of grid turbulence where turbulent and non-turbulent flows coexist, the -1 power law in the concentration fluctuation spectrum in turbulent jets, and that mixing does not progress sufficiently to the molecular level near the turbulent/non-turbulent interface. On the other hand, the direct numerical simulation revealed that the active reaction near the turbulent/nonturbulent interface occurs at a distance of about Taylor microscale apart from the interface, regardless of the Schmidt number.
Teaching Experience (On-campus) 6
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Numerical analysis
2021
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Thermodynamics
2021
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流体力学基礎第２および演習
2016
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非粘性流体力学
2016
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統計流体力学特論
2015
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非粘性流体力学
2015