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Title: Generation of long, laminar plasma jets at atmospheric pressure and effects of flow turbulence
Author: Pan WX(潘文霞); Zhang WH(张文宏); Wu CK(吴承康)
Source: Plasma Chemistry and Plasma Processing
Issued Date: 2001
Volume: 21, Issue:1, Pages:23-35
Abstract: Long, laminar plasma jets at atmospheric pressure of pure argon and a mixture of argon and nitrogen with jet length up to 45 fi,Hes its diameter could be generated with a DC are torch by! restricting the movement of arc root in the torch channel. Effects of torch structure, gas feeding, and characteristics of power supply on the length of plasma jets were experimentally examined. Plasma jets of considerable length and excellent stability could be obtained by regulating the generating parameters, including are channel geometry gas flow I ate, and feeding methods, etc. Influence of flow turbulence at the torch,nozzle exit on the temperature distribution of plasma jets was numerically simulated. The analysis indicated that laminar flow plasma with very low initial turbulent kinetic energy will produce a long jet, with low axial temperature gradient. This kind of long laminar plasma jet could greatly improve the controllability for materials processing, compared with a short turbulent are let.
Language: 英语
Indexed Type: SCI ; EI
Corresponding Author: Pan, WX (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100080, Peoples R China.
DOI: 10.1023/A:1007037327834
DOC Type: Article
WOS Subject: Engineering, Chemical ; Physics, Applied ; Physics, Fluids & Plasmas
WOS Subject Extended: Engineering ; Physics
WOS ID: WOS:000168317000002
ISSN: 0272-4324
Subject: 力学
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/17248
Appears in Collections:力学所知识产出(1956-2008)_期刊论文

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