CORRECTIONS TO THE COLLISION TERM IN THE
BGK BOLTZMANN EQUATION
FENG SHI-DE;REN RONG-CAI;CUI XIAO-PENG;JI ZHONG-ZHEN
【期刊名称】《中国物理：英文版》 【年(卷),期】2001(010)012
【摘要】With the discrete method of the hexagonal cell and three different velocities of particle population in each cell,a two-dimensional lattice Boltzmann model is developed in this paper.[1,2] The collision operator in the Boltzmann equation is expanded to fourth order using the Taylor expansion.[3,4] With this model, good results have been obtained from the numerical simulation of the reflection phenomenon of the shock wave on the surface of an obstacle, and the numerical stability is also good. Thus the applicability of the D2Q19 model is verified.
【总页数】4页(1106-1109)
【关键词】lattice Boltzmann model;collision operator;shock wave 【作者】FENG SHI-DE;REN RONG-CAI;CUI XIAO-PENG;JI ZHONG-ZHEN 【作者单位】State Key Laboratory of Numerical Modelling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China;State Key Laboratory of Numerical Modelling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric
CORRECTIONS TO THE COLLISION TERM IN THE BGK BOLTZMANN EQUATION
