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Computational Analysis of a Double Nozzle Structure Plasma Cutting Torch

文献类型：期刊论文

作者Guo, Shaofeng1; Zhou, Qianhong2; Guo, Wenkang1; Xu, Ping1
刊名PLASMA CHEMISTRY AND PLASMA PROCESSING
出版日期2010-02-01
卷号30页码:121-140
关键词Double nozzle structure Double arcing Cutting ability
ISSN号0272-4324
DOI10.1007/s11090-009-9204-0
英文摘要Double arcing phenomenon is a limit to increasing the capacity of the plasma cutting torch. In an attempt to enhance the ability of being invulnerable to the double arcing, a double nozzle structure is introduced in this paper. The reason why the double nozzle structure is less vulnerable to the double arcing phenomenon than single nozzle structure is explored. Double nozzle structure allows the longer nozzle which may cause stronger shock wave. In order to evaluate the influence of shock wave on the cutting ability, the influence of nozzle length on the double nozzle structure plasma arc is investigated. The modeling results show that the longer nozzle produces the stronger shock wave outside the nozzle outlet, but the energy flux and momentum flux become concentrated after the shock wave and increases with the increasing of nozzle length. So the double nozzle structure improves the cutting ability of the plasma torch and meanwhile be less vulnerable to the double arcing phenomenon.
WOS关键词TRANSPORT-COEFFICIENTS ; SPECTROSCOPIC ANALYSIS ; ARC ; OXYGEN ; AIR ; ARGON ; DYNAMICS ; NITROGEN
WOS研究方向Engineering ; Physics
语种英语
WOS记录号WOS:000274635300009
出版者SPRINGER
源URL[http://119.78.100.186/handle/113462/32219]  
专题中国科学院近代物理研究所
通讯作者Guo, Shaofeng
作者单位1.Fudan Univ, Inst Modern Phys, Plasma Lab, Shanghai 200433, Peoples R China
2.Inst Appl Phys & Computat Math, Beijing 100094, Peoples R China
推荐引用方式
GB/T 7714		 Guo, Shaofeng,Zhou, Qianhong,Guo, Wenkang,et al. Computational Analysis of a Double Nozzle Structure Plasma Cutting Torch[J]. PLASMA CHEMISTRY AND PLASMA PROCESSING,2010,30:121-140.
APA Guo, Shaofeng,Zhou, Qianhong,Guo, Wenkang,&Xu, Ping.(2010).Computational Analysis of a Double Nozzle Structure Plasma Cutting Torch.PLASMA CHEMISTRY AND PLASMA PROCESSING,30,121-140.
MLA Guo, Shaofeng,et al."Computational Analysis of a Double Nozzle Structure Plasma Cutting Torch".PLASMA CHEMISTRY AND PLASMA PROCESSING 30(2010):121-140.

入库方式： OAI收割

来源：近代物理研究所

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