Faculty Profiles - YAMAMOTO, Kazuhiro

Papers - YAMAMOTO, Kazuhiro

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PLIF法による拡散火炎の熱発生速度の検討 Reviewed

麻田泰生, 山本和弘, 林直樹, 山下博史

日本燃焼学会誌 Vol. 50 ( 151 ) page： 146-152 2010.2

間欠燃料噴射を利用した燃焼場の検討 Reviewed

磯部佑介，山本和弘，山下博史，上島光浩

日本機械学会論文集（B編） Vol. 75 ( 760 ) page： 2528-2534 2010.1

Simulation on Catalytic Reaction in Diesel Particulate Filter Reviewed

K. Yamamoto, M. Nakamura, H. Yane, and H. Yamashita

Catalysis Today Vol. 153 page： 118-124 2010

転炉内二次燃焼に及ぼす炉内水素濃度の影響 Reviewed

奥山悟郎・山田敏雄・岸本康夫・山本和弘・林直樹・山下博史

鉄と鋼 Vol. 97 ( 5 ) page： 245-251 2010

The Numerical Simulation of Fuel-Lean Counterflow Premixed Flame with Flame Curvature Reviewed

N. Hayashi, C. Miyata, H. Yamashita, and K. Yamamoto

Progress in Computational Fluid Dynamics Vol. 10 ( 4 ) page： 225-231 2010

連続再生式ディーゼルフィルターにおけるすすの燃焼と堆積の数値解析 Reviewed

松井健太，山本和弘

日本機械学会論文集（B編） Vol. 76 ( 765 ) page： 896-902 2010

DPFの初期PM捕集性能と表面粗度の影響 Reviewed

常吉孝治，高木修，山本和弘

日本機械学会論文集（B編） Vol. 76 ( 767 ) page： 1110-1117 2010

SiC-Diesel Particulate Filterのウオッシュコート処理による初期PM捕集性能への影響 Reviewed

常吉孝治，高木修，山本和弘

日本自動車技術会論文集 Vol. 41 ( 6 ) page： 1365-1370 2010

Numerical Study on Spark Ignition Characteristics of Methane-air Mixture Using Detailed Chemical Kinetics(Effect of Electrode Temperature and Energy Channel Length on Flame Propagation and Relationship between Minimum Ignition Energy and Equivalence Ratio) Reviewed

J. Han, H. Yamashita and K. Yamamoto

Int. J. Thermal Sciences Vol. 4 ( 2 ) page： 305-313 2009.12

センターエアーバーナによる燃焼器の小型化に関する数値解析 Reviewed

槙田雄一郎，山下博史，山本和弘

日本機械学会論文集（B編） Vol. 75 ( 760 ) page： 2535-2543 2009.12

Two-sheet OH-PLIF法による乱流予混合火炎の火炎構造および局所消炎の検討 Reviewed

石井慎治，山本和弘，林直樹，山下博史

日本機械学会論文集（B編） Vol. 75 ( 759 ) page： 2315-2320 2009.11

Simulation on Catalytic Reaction in Diesel Particulate Filter

K. Yamamoto, M. Nakamura, H. Yane, and H. Yamashita

Abstract: The 4th Japan- China Workshop on Environmental Catalysis and Eco-material Vol. 1 page： 30-31 2009.11

噴霧燃焼の燃焼形態に与える液滴の大きさと数密度の影響に関する数値解析 Reviewed

萩原康太，山下博史，山本和弘

日本燃焼学会誌 Vol. 50 ( 158 ) page： 343-353 2009.11

Combustion Simulation in Ultra-micro Combustor Reviewed

K. Yamamoto and N. Hayashi

Abstract: 2009 China-Japan Workshop on Combustion in Micro Power System Vol. 1 page： 1-6 2009.10

排気ガス中のNOの触媒による酸化反応に関する数値解析 Reviewed

家根弘好，山下博史，山本和弘

日本機械学会論文集（B編） Vol. 75 ( 756 ) page： 1669-1677 2009.8

格子ボルツマン法による燃焼場の解析

山本和弘

日本計算工学会学会誌 Vol. 14 ( 3 ) page： 2107-2110 2009.8

Simulation on Gas-Solid Flow with Heat Transfer in Diesel Particulate Filter Reviewed

K. Yamamoto, and M. Nakamura

Abstract: 18th Int. Conference on the Discrete Simulation of Fluid Dynamics Vol. 1 2009.7

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

To reduce particulate matters (PM) including soot in diesel exhaust gas, a diesel particulate filter (DPF) has been developed for the after-treatment of exhaust gas. In simple explanation of DPF, it traps PM when exhaust gas passes its porous wall. However, since the filter would be plugged with particles to cause an increase of filter back-pressure, filter regeneration process is needed. In this study, we have simulated the flow with soot combustion by the lattice Boltzmann method (LBM). Here, the real filter was used in the simulation. The inner structure of the filter sample was scanned by a 3D X-ray CT technique. By conducting tomography-assisted simulation, we obtained local velocity and pressure distributions in the filter, which is hardly obtained by measurements. Especially, to consider the heat transfer to the solid wall of the filter, the equation of heat conduction was solved, simultaneously. That is, the approach for the simulation of gas-solid flow is presented. Based on the temperature change and reaction in DPF, the heat and mass transfer in the filter regeneration process was discussed.

火災時の避難行動のモデル化と解析

山本和弘

豊田研究報告 Vol. 62 page： 153-155 2009.5

Combustion Characteristics and Flame Structure in a Triple Port Burner Reviewed

G. Okuyama, K. Yamamoto, N. Hayashi, and H. Yamashita

Proc. 6th Int. Conf. Computational Heat and Mass Transfer page： 373-378 2009.5

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

Diffusion flames are widely used in practical combustors such as furnaces and diesel engines. To increase the combustion efficiency and reduce the harmful products to the environments, fundamental researches are needed for improving the design and operation of the combustor. In this study, we have focused on a triple port burner to provide plurality of combustion air jets. The burner consists of three concentric tubes. Air flows in both inner (central) and outer tubes, and fuel (propane) flows in the annulus between these air tubes. Then, two diffusion flames are formed in the boundary of fuel and air streams. We have numerically investigated combustion characteristics in the triple port burner. For comparison, some experiments including the temperature measurement have been conducted. Based on numerical and experimental results, the flame structure has been discussed.

The Numerical Simulation of Fuel-Lean Counterflow Premixed Flame with Flame Curvature Reviewed

N. Hayashi, C. Miyata, H. Yamashita, and K. Yamamoto

Proc. 6th Int. Conf. Computational Heat and Mass Transfer page： 367-372 2009.5

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

The influence of flame curvature and unsteady behavior on the local extinction and flame structure is investigated by numerical simulation of the counterflow premixed flame using chemical kinetics model. To impart a curvature to the flame front, the premixed gas is spouted with axial velocities varying in the transverse direction at the nozzle. The methane-air premixed gas with near flammability limit (equivalence ratio is 0.55) is considered. The heat release rate begins to fall immediately after a part of spout velocity is changed from surrounding
velocity, and the local extinction occurs. However, the flame is recovered by propagating from surroundings. In this study, the flame structures (i.e. heat release rte, temperature and mole concentrations) at this local extinction are investigated, and by comparing with the experimental results by OH-CH2O simultaneous PLIF (Planar Laser-Induced Fluorescence) technique, it is shown that the measurement is the quite useful tool to evaluate the local extinction.

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Papers - YAMAMOTO, Kazuhiro