| 考虑壁面接触效应的微流动数值模拟 |
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| 引用本文： | 宋昱,王飞,郝鹏飞,何枫. 考虑壁面接触效应的微流动数值模拟[J]. 计算物理, 2008, 25(1): 75-82 |
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| 作者姓名： | 宋昱 王飞 郝鹏飞 何枫 |
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| 作者单位： | 清华大学航天航空学院,北京,100084;清华大学航天航空学院,北京,100084;清华大学航天航空学院,北京,100084;清华大学航天航空学院,北京,100084 |
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| 基金项目： | NSF(No.10672089) |
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| 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.
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| 关 键 词： | 两相流动 level set方法 volume of fluid方法 接触角 界面追踪 |
| 文章编号： | 1001-246X（2008）01-0075-08 |
| 收稿时间： | 2006-09-07 |
| 修稿时间： | 2007-01-09 |
Numerical Simulation of Micro Flows Considering Wall Adhesion |
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| SONG Yu,WANG Fei,HAO Pengfei,HE Feng. Numerical Simulation of Micro Flows Considering Wall Adhesion[J]. Chinese Journal of Computational Physics, 2008, 25(1): 75-82 |
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| Authors: | SONG Yu WANG Fei HAO Pengfei HE Feng |
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| Affiliation: | School of Aerospace, Tsinghua University, Beijing 100084, China |
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| Abstract: | 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. |
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| Keywords: | two-phase flow level set method volume of fluid method contact angle interface capture |
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