Direct Measurement of the Gas Entrainment Into a Turbulent Thermal Plasma Jet
文献类型：期刊论文
| 作者 | Wang HX ; Wei FZ; Meng X(孟显); Chen X; Han DS; Pan WX(潘文霞)
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| 刊名 | Plasma Chemistry and Plasma Processing
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| 出版日期 | 2011 |
| 卷号 | 31期号:1页码:127-138 |
| 通讯作者邮箱 | whx@buaa.edu.cn |
| 关键词 | Turbulent Plasma Jet Gas Entrainment Entrainment Rate Measurement Experimental Study Ambient Air High-Velocity Argon Laminar Pressure Flow |
| ISSN号 | 0272-4324 |
| 产权排序 | [Wang, Hai-Xing; Wei, Fu-Zhi; Han, Dong-Sheng] Beijing Univ Aeronaut & Astronaut, Sch Astronaut, Beijing 100191, Peoples R China; [Meng, Xian; Pan, Wen Xia] Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; [Chen, Xi] Tsinghua Univ, Dept Engn Mech, Beijing 100084, Peoples R China |
| 通讯作者 | Wang, HX, Beijing Univ Aeronaut & Astronaut, Sch Astronaut, Beijing 100191, Peoples R China |
| 合作状况 | 国内 |
| 中文摘要 | An experimental study is conducted to investigate the entrainment characteristics of a turbulent thermal plasma jet issuing from a DC arc plasma torch operating at atmospheric pressure. The mass flow rate of the ambient gas entrained into the turbulent plasma jet is directly measured by use of the so-called "porous-wall chamber" technique. It is shown that a large amount of ambient gas is entrained into the turbulent plasma jet. With the increase of the gas mass flow rate at the plasma jet inlet or the plasma torch exit, the mass flow rate of entrained ambient gas almost linearly increases but its ratio to the jet-inlet mass flow rate decreases. The mass flow rate of the entrained gas increases with the increase of the arc current or jet length. It is also found that using different ways to inject the plasma-forming gas into the plasma torch affects the entrainment rate of the turbulent plasma jet. The entrainment rate expression established previously by Ricou and Spalding (J. Fluid Mech. 11: 21, 1961) for the turbulent isothermal jets has been used to correlate the experimental data of the entrainment rates of the turbulent thermal plasma jet, and the entrainment coefficient in the entrainment rate expression is found to be in range from 0.40 to 0.47 for the turbulent thermal plasma jet under study. |
| 学科主题 | Engineering; Physics |
| 分类号 | 二类/Q2 |
| 类目[WOS] | Engineering, Chemical ; Physics, Applied ; Physics, Fluids & Plasmas |
| 研究领域[WOS] | Engineering ; Physics |
| 关键词[WOS] | AMBIENT AIR ; HIGH-VELOCITY ; ARGON ; LAMINAR ; PRESSURE ; FLOW |
| 收录类别 | SCI ; EI |
| 资助信息 | This work was supported by the National Natural Science Foundation of China (Grant No. 10772016). |
| 原文出处 | http://dx.doi.org/10.1007/s11090-010-9274-z |
| 语种 | 英语 |
| WOS记录号 | WOS:000286393100009 |
| 公开日期 | 2012-03-31 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/44868]  |
| 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 | Wang HX,Wei FZ,Meng X,et al. Direct Measurement of the Gas Entrainment Into a Turbulent Thermal Plasma Jet[J]. Plasma Chemistry and Plasma Processing,2011,31(1):127-138. |
| APA | Wang HX,Wei FZ,孟显,Chen X,Han DS,&潘文霞.(2011).Direct Measurement of the Gas Entrainment Into a Turbulent Thermal Plasma Jet.Plasma Chemistry and Plasma Processing,31(1),127-138. |
| MLA | Wang HX,et al."Direct Measurement of the Gas Entrainment Into a Turbulent Thermal Plasma Jet".Plasma Chemistry and Plasma Processing 31.1(2011):127-138. |
入库方式： OAI收割
来源：力学研究所
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