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	Numerical modeling of the high-intensity transferred arc with a water-cooled constrictor tube
	Wang, HX ; Chen, X
	2010-05-07 ; 2010-05-07 ; OCT
关键词	DC transferred arc plasma flow and heat transfer modeling ANODE CONTRACTION REGION Physics, Fluids & Plasmas
中文摘要	Stable and axi-symrpetrical DC high-intensity transferred arcs with a coaxial water-cooled constrictor tube have been used to study the arc characteristics for many years. All the previous modeling studies concerning the high-intensity transferred arcs were restricted to the near-anode region. Modeling results are presented in this paper concerning the characteristics of the whole high-intensity transferred arc, referring to a recent experiment. It is shown that the computed flow and temperature fields for different flow rates of the working gas are overall similar, but a fully developed flow regime can only be achieved in the water-cooled constrictor tube at low working-gas flow rates. The predicted radial profiles of plasma temperature at the cross section near the constrictor-tube exit compare favorably with available experimental data, but corresponding comparison about the plasma axial-velocity profiles shows appreciable difference, revealing that there may exist considerable errors in the plasma velocity measurements using a sweeping Pitot tube.
语种	英语 ; 英语
出版者	SCIENCE PRESS ; BEIJING ; 16 DONGHUANGCHENGGEN NORTH ST, BEIJING 100717, PEOPLES R CHINA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/15716]
专题	清华大学
推荐引用方式 GB/T 7714	Wang, HX,Chen, X. Numerical modeling of the high-intensity transferred arc with a water-cooled constrictor tube[J],2010, 2010, OCT.
APA	Wang, HX,&Chen, X.(2010).Numerical modeling of the high-intensity transferred arc with a water-cooled constrictor tube..
MLA	Wang, HX,et al."Numerical modeling of the high-intensity transferred arc with a water-cooled constrictor tube".(2010).

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