Detailed Information

Research Field/Keywords for Research Field

• Computational Fluid Dynamics

Education

• 1996/03, Graduated
• 2002/06, Doctor Course, Accomplished credits for doctoral program

Employment Experience

• 2002/07 - 2003/09 Research Fellow
• 2003/10 - 2009/09 Research Fellow
• 2009/10 - 2015/02 Assistant Professor
• 2015/03 -  *  Associate Professor, Department of Mechanical Engineering, Faculty of Science and Engineering, Saga University

Field of Specialization

• Fluid engineering, Computational science, Biomedical engineering/ Biomaterial science and engineering

Research Topics and Results

• Numerical simulation on wakes of a butterfly wind turbine and a straight-bladed vertical-axis wind turbine 2021/09
• Numerical Analysis of Effects of Arms with Different Cross-Sections on Straight-Bladed Vertical Axis Wind Turbine 2019
• Estimation of Mechanical Properties of Living Tissue by Shock Wave Irradiation 2018/11
• Numerical Analysis on the Effects of Arm on the Straight Blade of a Vertical Axis Wind Turbine 2018/06
• Numerical Simulation on Fluid Force and Structure of Triangular-Blade Butterfly Wind Turbine 2017/10
• Experimental and Numerical Studies on the Possibility of Duct Flow Low-power Generation Using a Butterfly Wind Turbine 2017/01
• Experiment and numerical simulation of an aluminum circular-blade butterfly wind turbine 2016
• Study on internal flow and spray characteristic of a marine diesel nozzle 2016
• A new central compact finite difference formula for improving robustness in weighted compact nonlinear schemes 2015
• Effects of blade section on performance of butterfly wind turbines as double-blade VAWTs 2015
• Spray characteristics and inside flow of a marine diesel injector 2015
• Experiments and 2D-CFD analysis on the possibility of duct-flow power generation using a butterfly wind turbine 2015
• Numerical simulation of flow field around a circular-bladed butterfly wind turbine 2015

Original Articles

• Numerical Analysis of Effects of Arms with Different Cross-Sections on Straight-Bladed Vertical Axis Wind Turbine;　2019
  ANNOUNCEMENT INFO.;　Energies, 12, 2106, 1-24
  AUTHOR;　Yutaka Hara, Naoki Horita, Shigeo Yoshida, Hiromichi Akimoto, Takahiro Sumi
  
• Experimental and Numerical Studies on the Possibility of Duct Flow Low-power Generation Using a Butterfly Wind Turbine;　2017/01
  ANNOUNCEMENT INFO.;　International Journal of Fluid Machinery and Systems, 10, 1, 19-29
  AUTHOR;　Yutaka Hara, Shohei Kogo, Katsuhiro Takagaki, Makoto Kawanishi, Takahiro Sumi, Shigeo Yoshida,
  
• Experiment and numerical simulation of an aluminum circular-blade butterfly wind turbine;　2016
  ANNOUNCEMENT INFO.;　Journal of Fluid Science and Technology, 11, 2, 1-20
  AUTHOR;　Yutaka Hara, Akira Shiozaki, Hiroaki Nishiono, Shigenori Saito, Keisuke Shioya, Takahiro Sumi, Yuhei Matsubara, Yoshiyuki Yasumoto, Katsuhiro Takagaki, Shohei Kogo
  
• Study on internal flow and spray characteristic of a marine diesel nozzle;　2016
  ANNOUNCEMENT INFO.;　Journal of the JIME, 51, 1, 1-7
  AUTHOR;　Sumito Yokobe, Katsuyuki Ohsawa, Tetsuya Oda, Takahiro Sumi, Keiichiro Yabuta, Shuhei Sugata
  
• A new central compact finite difference formula for improving robustness in weighted compact nonlinear schemes;　2015
  ANNOUNCEMENT INFO.;　Computers & Fluids, 123, 162-182
  AUTHOR;　Takahiro Sumi, Takuji Kurotaki
  
• Effects of blade section on performance of butterfly wind turbines as double-blade VAWTs;　2015
  ANNOUNCEMENT INFO.;　Journal of Fluid Science and Technology, 10, 1, 1-19
  AUTHOR;　Yutaka Hara, Takahiro Sumi, Takanori Emi, Mutsuko Yokoyama, Hiromichi Akimoto, Takafumi Kawamura, Takuju Nakamura
  

General Lectures

• Numerical simulation on wakes of a butterfly wind turbine and a straight-bladed vertical-axis wind turbine;　2021/09
  ANNOUNCEMENT INFO.;　JSMME2021
  AUTHOR;　Ayato Miyashita, Yutaka Hara, Shigeo Yoshida, Takahiro Sumi, Hiromichi Akimoto
  
• Estimation of Mechanical Properties of Living Tissue by Shock Wave Irradiation;　2018/11
  ANNOUNCEMENT INFO.;　The 15th International Conference on Flow Dynamics (ICFD2018), USB, CRF-67
  AUTHOR;　Takahiro Sumi, Tokitada Hashimoto, Kiyonobu Ohtani
  
• Numerical Analysis on the Effects of Arm on the Straight Blade of a Vertical Axis Wind Turbine;　2018/06
  ANNOUNCEMENT INFO.;　Grand Renewable Energy 2018 International Exhibition
  AUTHOR;　Naoki Horita, Yutaka Hara, Chiasa Harada, Shigeo Yoshida, Hiromichi Akimoto, Takahiro Sumi
  
• Numerical Simulation on Fluid Force and Structure of Triangular-Blade Butterfly Wind Turbine;　2017/10
  ANNOUNCEMENT INFO.;　The 6th International Conference on Jets, Wakes and Separated Flows (ICJWSF 2017)
  AUTHOR;　Yutaka Hara, Masahiro Okutani, Kotaro Tagawa, Shigeo Yoshida, Takahiro Sumi
  
• Spray characteristics and inside flow of a marine diesel injector;　2015
  ANNOUNCEMENT INFO.;　SAE 2015-01-1838
  AUTHOR;　Sumito Yokobe, Tetsuya Oda, Katsuyuki Ohsawa, Takahiro Sumi, Shuhei Sugata, Keiichiro Yabuta
  
• Experiments and 2D-CFD analysis on the possibility of duct-flow power generation using a butterfly wind turbine;　2015
  ANNOUNCEMENT INFO.;　The 13th Asian International Conference on Fluid Machinery, AICFM13-187
  AUTHOR;　Yutaka Hara, Shohei Kogo, Katsuhiro Takagaki, Makoto Kawanishi, Takahiro Sumi, Shigeo Yoshida
  
• Numerical simulation of flow field around a circular-bladed butterfly wind turbine;　2015
  ANNOUNCEMENT INFO.;　ASME-JSME-KSME Joint Fluids Engineering Conference 2015, AJKFluids2015-22038
  AUTHOR;　Yutaka Hara, Takahiro Sumi, Yuhei Matsubara, Yoshiyuki Yasumoto