摘要
ＦＨＰ模型中压强与流速有关，使Ｃｏｕｅｔｔｅ流中产生稳定的与流速有关的密度分布．为克服这一非物理的效应，采用了１２ｂｉｔ多重速度模型．当两种速度的粒子密度满足一定关系时，新模型的方程具有伽利略不变性且压强与流速无关．模拟结果和理论预计是一致的．
The pressure depending on flow velocity will cause a stationary density gradient in Couette flow simulated by FHP lattice gas automaton model. To overcome the unphysical effect,12 bit multispeed model is adopted .When densities for particles with two kinds of speeds satisfy a certain relation the new model is of Galilean invariant and the pressure is in dependent of flow velocity.The simulation results are coherent with theoretical prediction.
出处
《广西师范大学学报（自然科学版）》
CAS
1994年第4期41-45,共5页
Journal of Guangxi Normal University:Natural Science Edition
基金
国家自然科学基金
关键词
格子气自动机
库特流
非物理效应
lattice gas automata
couette flow
unphysical effect
