Structure of a shock wave in a vibrationally relaxing diatomic gas
作者:
T. G. Pai,
S. M. Ramachandra,
期刊:
Physics of Fluids(00319171)
(AIP Available online 1975)
卷期:
Volume 18,
issue 2
页码: 166-174
ISSN:0031-9171
年代: 1975
DOI:10.1063/1.861123
出版商: AIP
数据来源: AIP
摘要:
The kinetic theory of axially elastic spherocylinder molecules is used for obtaining the shock structure in a vibrationally relaxing diatomic gas. A trimodal and a quadrimodal ansatz are proposed for the distribution function within a shock, and a moment method is used to determine the unknown weight functions in the ansatz. The collision integrals in the moment equations are 22−fold out of which 16−fold integrations are carried out analytically and the remaining integrations are performed numerically using a Monte Carlo technique. The differential equations in the weight functions are solved numerically and shock profiles in nitrogen are obtained for a range of upstream Mach numbers and pressures.
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