题 目：
DNS and Modeling of Turbulent Premixed Flames
报告人：
Prof. Tatsuya HASEGAWA
EcoTopia Science Institute, Nagoya University, Japan
报告摘要：
Turbulent premixed flames propagating in homogeneous isotropic turbulent flows were directly simulated with different density ratios and with different Lewis numbers. These DNS databases were investigated by analyzing Favre averaged transport equations for turbulent kinetic energy and turbulent scalar flux to study flame-generated turbulence and counter-gradient diffusion. Modeling of important terms in the balance equations of turbulent kinetic energy and turbulent scalar flux were also discussed. These modeled equations were used to simulate turbulent premixed flames with flame-generated turbulence and counter-gradient diffusion. Analyses of turbulent burning velocity were also performed using newly calculated DNS databases with different Lewis numbers.
报告人简介：
Research field:
Combustion, Heat Transfer, Fluid Mechanics, Computational Fluid Dynamics, Environmental Engineering, Mechanical Engineering, Aerospace Engineering
Research subject:
Direct numerical simulation and modeling of turbulent premixed combustion
Reaction mechanism and heat production in hydrothermal processes
Hydrothermal gasification of biowastes and fuels
Highly efficient air conditioning system using HFC and natural refrigerant
Thermoplastic welding by diode laser
Academic career:
1977 B. S. Engineering, Department of Aeronautics, Nagoya University
1983 Dr. Engineering, Nagoya University
1983 Research Associate, Nagoya Institute of Technology
1987 Associate Professor, Nagoya Institute of Technology
2002 Professor, Center for Integrated Research in Science and Engineering, Nagoya University
2004 Professor, EcoTopia Science Institute, Nagoya University
时 间：
4月
10日（周二）下午
4点
地 点：力学与空天技术系大风洞会议室
欢迎广大师生光临！要求力学系流体专业研究生必须参加。
