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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); Deng, J, Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
Source PublicationPlasma Science & Technology
2011
Volume13Issue:2Pages:201-207
ISSN1009-0630
AbstractIn 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.
KeywordModeling Arc Plasma Torch Mhd Arc Root Fluid-solid Coupled Method Atmospheric-pressure Argon Generation Jet
Subject AreaPhysics
DOI10.1088/1009-0630/13/2/15
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000289415000015
WOS KeywordATMOSPHERIC-PRESSURE ; ARGON ; GENERATION ; JET
WOS Research AreaPhysics
WOS SubjectPhysics, Fluids & Plasmas
Funding Organizationsupported by National Natural Science Foundation of China (No. 50476081)
DepartmentLHD高效洁净燃烧(CPCR)
ClassificationQ4
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/44863
Collection等离子体与燃烧中心(2009-2011)
Corresponding AuthorDeng, J, Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China
Recommended Citation
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,&Deng, J, Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.(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.
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