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	Numerical Regularized Moment Method for High Mach Number Flow
	Cai, Zhenning ; Li, Ruo ; Wang, Yanli
	2012
关键词	Boltzmann-BGK equation Maxwellian iteration regularized moment equations KINETIC THEORY BGK EQUATION GAS DERIVATION
英文摘要	This paper is a continuation of our earlier work [SIAM J. Sci. Comput., 32(2010), pp. 2875-2907] in which a numericalmoment method with arbitrary order of moments was presented. However, the computation may break down during the calculation of the structure of a shock wave with Mach number M-0 >= 3. In this paper, we concentrate on the regularization of the moment systems. First, we apply the Maxwell iteration to the infinite moment system and determine the magnitude of each moment with respect to the Knudsen number. After that, we obtain the approximation of high order moments and close the moment systems by dropping some high-order terms. Linearization is then performed to obtain a very simple regularization term, thus it is very convenient for numerical implementation. To validate the new regularization, the shock structures of low order systems are computed with different shock Mach numbers.; Physics, Mathematical; SCI(E); 0; ARTICLE; 5; 1415-1438; 11
语种	英语
出处	SCI
出版者	communications in computational physics
内容类型	其他
源URL	[http://hdl.handle.net/20.500.11897/314411]
专题	数学科学学院 工学院
推荐引用方式 GB/T 7714	Cai, Zhenning,Li, Ruo,Wang, Yanli. Numerical Regularized Moment Method for High Mach Number Flow. 2012-01-01.

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