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	Three dimensional modeling of the plasma spray process
	He-Ping Li ; Pfender, E.
	2010-10-12 ; 2010-10-12
关键词	Theoretical or Mathematical/ nozzles plasma arc spraying plasma jets plasma simulation plasma temperature plasma thermodynamics plasma torches/ plasma spray process 3D flow simulation DC arc plasma torch carrier gas injection plasma jet anode arc current enthalpy gas flow torch nozzle 3D temperature field simulation mixing effects/ A5275H Plasma torches A5225K Thermodynamics of plasmas A5225L Plasma temperature and density A5275R Plasma applications in manufacturing and materials processing A8115R Spray coating techniques A5265 Plasma simulation
中文摘要	Results of simulations of three-dimensional (3D) temperature and flow fields inside and outside of a DC arc plasma torch in steady state are presented with transverse particle and carrier gas injection into the plasma jet. The results show that an increase of the gas flow rate at constant current moves the anode arc root further downstream leading to higher enthalpy and velocity at the exit of the torch anode, and stronger mixing effects in the jet region. An increase of the arc current with constant gas flow rate shortens the arc, but increases the enthalpy and velocity at the exit of the torch nozzle, and leads to longer jets. 3D features of the plasma jet due to the 3D starting conditions at the torch exit and, in particular, due to the transverse carrier gas and particle injection, as well as 3D trajectories and heating histories of sprayed particles are also discussed.
语种	英语
出版者	ASM International ; USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/82278]
专题	清华大学
推荐引用方式 GB/T 7714	He-Ping Li,Pfender, E.. Three dimensional modeling of the plasma spray process[J],2010, 2010.
APA	He-Ping Li,&Pfender, E..(2010).Three dimensional modeling of the plasma spray process..
MLA	He-Ping Li,et al."Three dimensional modeling of the plasma spray process".(2010).

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