Monte Carlo modeling of electron density in hypersonic rarefied gas flows

	Monte Carlo modeling of electron density in hypersonic rarefied gas flows
	Fan J(樊菁); Zhang YH(张羽淮); Jiang JZ(蒋建政)
会议录名称	AIP Conf. Proc. 1628
	2014-12
会议名称	the 29th International Symposium on Rarefied Gas Dynamics
会议日期	July13-18, 2014
会议地点	Xi'an, China
摘要	The electron density distribution around a vehicle employed in the RAM-C II flight test is calculated with the DSMC method. To resolve the mole fraction of electrons which is several orders lower than those of the primary species in the free stream, an algorithm named as trace species separation (TSS) is utilized. The TSS algorithm solves the primary and trace species separately, which is similar to the DSMC overlay techniques; however it generates new simulated molecules of trace species, such as ions and electrons in each cell, basing on theionization and recombination rates directly, which differs from the DSMC overlay techniques based on probabilistic models. The electron density distributions computed by TSS agree well with the flight data measured in the RAM-C II test along a decent trajectory at three altitudes 81km, 76km, and 71km.
关键词	Hypersonic Rarefied Gas Flow Electron Density Dsmc Tss Ram-c Ii Flight Test
课题组名称	LHD微尺度和非平衡流动
URL	查看原文
收录类别	CPCI
语种	英语
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/49474
专题	高温气体动力学国家重点实验室
推荐引用方式 GB/T 7714	Fan J,Zhang YH,Jiang JZ. Monte Carlo modeling of electron density in hypersonic rarefied gas flows[C]AIP Conf. Proc. 1628,2014.

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