计算物理 ›› 2004, Vol. 21 ›› Issue (4): 316-320.
• 研究论文 • 上一篇 下一篇
王沫然, 王金库, 李志信
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WANG Mo-ran, WANG Jin-ku, LI Zhi-xin
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摘要: 提出了一种实现DSMC压力边界条件的新方法,新方法不仅可以避免传统"通量法"造成的计算发散问题,又较之"入口平均法"有更快的收敛速度.使用这种方法,对不同压差驱动下等壁温微通道内的气体流动进行了模拟,并与传统的基于连续介质假设的滑移理论所得结果进行了比较.
关键词: 压力边界条件, 微流动, DSMC
Abstract: A new treatment of pressure boundary condition for DSMC method is proposed.With the new method,the computational divergence of traditional "number flux method" can be avoided and a higher convergence speed than the "averaged at inlet" method is obtained.The flows in micro-channels driven by different pressure drops are investigated using the new method.Comparison between DSMC results and continuum-based results has also been made.
Key words: pressure boundary condition, micro flow, DSMC
中图分类号:
O41 TK16 V211
王沫然, 王金库, 李志信. DSMC方法的压力边界条件实现[J]. 计算物理, 2004, 21(4): 316-320.
WANG Mo-ran, WANG Jin-ku, LI Zhi-xin. New Implement of Pressure Boundary Conditions for DSMC[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2004, 21(4): 316-320.
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