摘要
使用level set和volume of fluid(VOF)方法对考虑壁面接触效应的不可压缩两相微流动进行数值模拟.对于level set方法,计算基于MAC网格,使用二阶投影算法求解二维Navier-Stokes(N-S)方程和level set函数方程;对于VOF方法,通过引入计算网格内的体积分数,将流场的参数转化为体积平均值,界面的形状由体积分数连续方程的解决定.给出一些计算实例,并和现有的实验结果进行比较.
Level set and volume of fluid （VOF） methods for incompressible two-phase micro flows considering wall adhesion are presented. In the level set method, based on staggered MAC grid, a second-order projection method is carried out to solve 2D Navier-Stokes （N-S） equations and level set function. In the VOF method, the volume fraction of each phase in each computational cell is employed. Variables and properties of flow are computed to represent volume-averaged values. The interface between fluids is traced with solution of a continuity equation for volume fractions. Computational results are shown and compared with experimental results.
出处
《计算物理》
EI
CSCD
北大核心
2008年第1期75-82,共8页
Chinese Journal of Computational Physics
基金
NSF(No.10672089)
