摘要
利用基于分子模型的统计模拟方法———信息保存方法 (IP)统计模拟了实验条件下微槽道气体流动 ,仔细讨论了用IP方法模拟长槽道稀薄气流时遇到的问题 ,并给出了解决的方法 ,即采取守恒形式的控制方程避免质量流量计算误差积累 ,并利用超松弛方法使收敛过程加速 .将IP计算结果与压力分布和质量流量实验数据进行了比较 .
A kinetic approach, named as the information preservation (IP) technique, is used to simulate rarefied gas flows in micro channels under conditions where experimental data are available with about several thousand microns of channel lengths and about 0\^135 of the largest Knudsen number at the outlet. Some issues for IP calculation of the long micro channels such as the computational stability and convergence speed are addressed. The calculated stream wise pressure distributions and mass fluxes are in agreement with experimental data. [
出处
《计算物理》
CSCD
北大核心
2002年第5期377-382,共6页
Chinese Journal of Computational Physics
基金
国家自然科学基金 (5 98760 43
198892 0 9)
中科院"百人计划"资助项目
