Numerical Simulation of Fluid Flow and Heat Transfer in a DC Non-Transferred Arc Plasma Torch Operating Under Laminar and Turbulent Conditions

CORC > 力学研究所 > 中国科学院力学研究所 > 等离子体与燃烧中心(2009-2011)

	Numerical Simulation of Fluid Flow and Heat Transfer in a DC Non-Transferred Arc Plasma Torch Operating Under Laminar and Turbulent Conditions
	Deng J(邓晶); Li YJ(李要建); Xu YX(徐永香); Sheng HZ(盛宏至)
刊名	Plasma Science & Technology
	2011
通讯作者邮箱	dengjing@imech.ac.cn
卷号	13 期号:2 页码:201-207
关键词	Modeling Arc Plasma Torch Mhd Arc Root Fluid-Solid Coupled Method Atmospheric-Pressure Argon Generation Jet
ISSN号	1009-0630
通讯作者	Deng, J, Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
产权排序	[Deng Jing; Li Yaojian; Xu Yongxiang; Sheng Hongzhi] Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
中文摘要	In this work, a magnetic fluid dynamics (MHD) model is used to simulate the electromagnetic field, heat transfer and fluid flow in a DC non-transferred arc plasma torch under laminar and turbulent conditions. The electric current density, temperature and velocity distributions in the torch are obtained through the coupled iterative calculation about the electromagnetic equations described in a magnetic vector potential format and the modified fluid dynamics equations. The fluid-solid coupled calculation method is applied to guarantee the continuity of the electric current and heat transfer at the interface between the electrodes and fluid. The predicted location of the anodic arc root attachment and the arc voltage of the torch are consistent with corresponding experimental results. Through a specific analysis of the influence of mass flow rates and electric current on the torch outlet parameters, the total thermal efficiency, thermal loss of each part, and the laws of the variation of outlet parameters with the variation of mass flow rates and electric current was obtained. It is found that operation under a laminar condition with a limited area of the anode could increase the total thermal efficiency of the torch.
学科主题	Physics
分类号	Q4
类目[WOS]	Physics, Fluids & Plasmas
研究领域[WOS]	Physics
关键词[WOS]	ATMOSPHERIC-PRESSURE ; ARGON ; GENERATION ; JET
收录类别	SCI ; EI
资助信息	supported by National Natural Science Foundation of China (No. 50476081)
原文出处	http://dx.doi.org/10.1088/1009-0630/13/2/15
语种	英语
WOS记录号	WOS:000289415000015
公开日期	2012-03-31
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/44863]
专题	力学研究所_等离子体与燃烧中心(2009-2011)
推荐引用方式 GB/T 7714	Deng J,Li YJ,Xu YX,et al. Numerical Simulation of Fluid Flow and Heat Transfer in a DC Non-Transferred Arc Plasma Torch Operating Under Laminar and Turbulent Conditions[J]. Plasma Science & Technology,2011,13(2):201-207.
APA	邓晶,李要建,徐永香,&盛宏至.(2011).Numerical Simulation of Fluid Flow and Heat Transfer in a DC Non-Transferred Arc Plasma Torch Operating Under Laminar and Turbulent Conditions.Plasma Science & Technology,13(2),201-207.
MLA	邓晶,et al."Numerical Simulation of Fluid Flow and Heat Transfer in a DC Non-Transferred Arc Plasma Torch Operating Under Laminar and Turbulent Conditions".Plasma Science & Technology 13.2(2011):201-207.