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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)
Source PublicationAIP Conf. Proc. 1628
2014-12
Conference Namethe 29th International Symposium on Rarefied Gas Dynamics
Conference DateJuly13-18, 2014
Conference PlaceXi'an, China
AbstractThe 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.
KeywordHypersonic Rarefied Gas Flow Electron Density Dsmc Tss Ram-c Ii Flight Test
DepartmentLHD微尺度和非平衡流动
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Indexed ByCPCI
Language英语
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/49474
Collection高温气体动力学国家重点实验室
Recommended Citation
GB/T 7714
Fan J,Zhang YH,Jiang JZ. Monte Carlo modeling of electron density in hypersonic rarefied gas flows[C],2014.
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