One-dimensional hybrid continuum/particle simulation approach for rarefied hypersonic flows
One-dimensional hybrid continuum/particle simulation approach for rarefied hypersonic flows
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DOI：
10.2514/6.1990-1690
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发表时间：
1990-06
期刊：
影响因子：
--
通讯作者：
D. C. Wadsworth;D. Erwin
中科院分区：
文献类型：
--
作者：
D. C. Wadsworth;D. Erwin
将一种基于连续介质和质点方法局部应用的混合数值技术应用于单原子气体中的一维正激波结构。在两种方法都适用的区域内，通过通量边界条件迭代耦合。通过激波结构量化了每种方法的有效性。讨论了耦合的物理和数值方面，并对各种耦合方法进行了评估。结果表明，通过混合方法可以提高计算效率。
A hybrid numerical technique, based on local application of continuum and particle methods, is applied to the one-dimensional normal shock structure in a monatomic gas. The methods are coupled iteratively via a flux boundary condition in a region where both are applicable. The validity of each method through the shock structure is quantified. The physical and numerical aspects of coupling are discussed and a variety of coupling methods are assessed. Results are presented to show the improvement in computational efficiency available via the hybrid approach.