Modeling Study on the Entrainment of Ambient Air into Subsonic Laminar and Turbulent Argon Plasma Jets

doi:10.1007/s11090-006-9047-x

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	Modeling Study on the Entrainment of Ambient Air into Subsonic Laminar and Turbulent Argon Plasma Jets
	Wang HX(王海兴); Chen X(陈熙); Pan WX(潘文霞); Chen, X (reprint author), Tsing Hua Univ, Dept Mech Engn, Beijing 100084, Peoples R China.
发表期刊	Plasma Chemistry and Plasma Processing
	2007
卷号	27 期号:2 页码:141-162
ISSN	0272-4324
摘要	Modeling study is performed to reveal the special features of the entrainment of ambient air into subsonic laminar and turbulent argon plasma jets. Two different types of jet flows are considered, i.e., the argon plasma jet is impinging normally upon a flat substrate located in atmospheric air surroundings or is freely issuing into the ambient air. It is found that the existence of the substrate not only changes the plasma temperature, velocity and species concentration distributions in the near-substrate region, but also significantly enhances the mass flow rate of the ambient air entrained into the jet due to the additional contribution to the gas entrainment of the wall jet formed along the substrate surface. The fraction of the additional entrainment of the wall jet in the total entrained-air flow rate is especially high for the laminar impinging plasma jet and for the case with shorter substrate standoff distances. Similarly to the case of cold-gas free jets, the maximum mass flow-rate of ambient gas entrained into the turbulent impinging or free plasma jet is approximately directly proportional to the mass flow rate at the jet inlet. The maximum mass flow-rate of ambient gas entrained into the laminar impinging plasma jet slightly increases with increasing jet-inlet velocity but decreases with increasing jet-inlet temperature.
学科领域	力学
DOI	10.1007/s11090-006-9047-x
收录类别	SCI
语种	英语
WOS记录号	WOS:000245134800003
WOS研究方向	Engineering ; Physics
WOS类目	Engineering, Chemical ; Physics, Applied ; Physics, Fluids & Plasmas
引用统计	被引频次：25[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/16771
专题	力学所知识产出(1956-2008)
通讯作者	Chen, X (reprint author), Tsing Hua Univ, Dept Mech Engn, Beijing 100084, Peoples R China.
推荐引用方式 GB/T 7714	Wang HX,Chen X,Pan WX,et al. Modeling Study on the Entrainment of Ambient Air into Subsonic Laminar and Turbulent Argon Plasma Jets[J]. Plasma Chemistry and Plasma Processing,2007,27,2,:141-162.
APA	王海兴,陈熙,潘文霞,&Chen, X .(2007).Modeling Study on the Entrainment of Ambient Air into Subsonic Laminar and Turbulent Argon Plasma Jets.Plasma Chemistry and Plasma Processing,27(2),141-162.
MLA	王海兴,et al."Modeling Study on the Entrainment of Ambient Air into Subsonic Laminar and Turbulent Argon Plasma Jets".Plasma Chemistry and Plasma Processing 27.2(2007):141-162.

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