瑞利-泰勒不稳定性的格子玻耳兹曼模拟  

SIMULATION OF RAYLEIGH TAYLOR INSTABILITY BY THE LATTICE BOLTZMANN MODEL

作　　者：聂小波[1] 张忠珍[1] 符鸿源[1] 沈隆钧[1] 王继海[1] 

机构地区：[1]北京应用物理与计算数学研究所

出　　处：《物理学报》1997年第8期1508-1516,共9页Acta Physica Sinica

基　　金：中国工程物理研究院基金;惯性约束聚变青年科学基金

摘　　要：发展了一个不相混两相流体的格子玻耳兹曼模型，模拟瑞利泰勒不稳定性．模型使用正方格阵并引入了一外力．数值模拟得到了界面扰动的线性和非线性发展图象。We have developed a lattice Boltzmann model from previous models for multiphase fluid flows to simulate Rayleigh Taylor instability.A force has been introduced and a 9 velocity square lattice is used.The conservation equation of total mass and momentum can be derived using Chapman Enskog multiscale expansions.Using this model we have obtained the linear growth and nonlinear growth of bubbles and the mushrooms produced by Rayleigh Taylor instability.

关 键 词：两相流 流体力学 不稳定性 玻耳兹曼模拟 

分 类 号：O359[理学—流体力学]