A Novel Lattice Boltzmann Model For Reactive Flows with Fast Chemistry  

作　　者：陈胜 柳朝晖 贺铸 张超 田智威 施保昌 郑楚光 

机构地区：[1]National Technology Center, Wuhan Iron and Steel (Croup) Company, Wuhan 430083 [2]State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074

出　　处：《Chinese Physics Letters》2006年第3期656-659,共4页中国物理快报（英文版）

摘　　要：A novel lattice Boltzmann model, in which we take the ratio of temperature difference in the temperature field to the environment one to be more than one order of magnitude than before, is developed to simulate two-dimensional reactive flows with fast chemistry. Different from the hybrid scheme for reactive flows [Comput. Phys. Commun. 129 （2000）267], this scheme is strictly in a pure lattice Doltzmann style （i.e., we solve the flow, temperature, and concentration fields using the lattice Boltzmann method only）. Different from the recent non-coupled lattice Boltzmann scheme lint. J. Mod. Phys. B 17（2003）197], the fluid density in our model is coupled directly with the temperature. Excellent agreement between the present results and other numerical data shows that this scheme is an efficient numerical method for practical reactive flows with fast chemistry.A novel lattice Boltzmann model, in which we take the ratio of temperature difference in the temperature field to the environment one to be more than one order of magnitude than before, is developed to simulate two-dimensional reactive flows with fast chemistry. Different from the hybrid scheme for reactive flows [Comput. Phys. Commun. 129 （2000）267], this scheme is strictly in a pure lattice Doltzmann style （i.e., we solve the flow, temperature, and concentration fields using the lattice Boltzmann method only）. Different from the recent non-coupled lattice Boltzmann scheme lint. J. Mod. Phys. B 17（2003）197], the fluid density in our model is coupled directly with the temperature. Excellent agreement between the present results and other numerical data shows that this scheme is an efficient numerical method for practical reactive flows with fast chemistry.

关 键 词：MACH NUMBER COMBUSTION PARTICLE-LADEN FLOW NEWTONIAN FLUID POROUS-MEDIA SIMULATION EQUATION SCHEME 

分 类 号：O76[理学—晶体学]