Experimental Observations of Constricted and Diffuse Anode Attachment in a Magnetically Rotating Arc at Atmospheric Pressure | |
Wang, Cheng1; Sun, Lu1; Sun, Qiang1; Zhang, Zelong1; Xia, Weiluo2; Xia, Weidong1 | |
刊名 | PLASMA CHEMISTRY AND PLASMA PROCESSING |
2019-03-01 | |
卷号 | 39期号:2页码:407-421 |
关键词 | Anode attachment Constricted mode Diffuse mode Magnetically rotating arcs Transformation of different modes |
ISSN号 | 0272-4324 |
DOI | 10.1007/s11090-019-09954-z |
英文摘要 | At atmospheric pressure, the anode attachment can appear in two different modes: constricted and diffuse. In this paper, a magnetically rotating arc plasma generator is built to investigate dynamics of anode attachment. A constricted and diffuse anode attachment, as well as the transformation between the two modes, are obtained. Results show the constricted anode attachment to be preferable for low arc currents and a low magnetic field, whereas the diffuse anode attachment is favored by the opposite conditions. With an increase in arc currents/magnetic field, the constricted anode attachment can transfer from a restrike mode with high voltage fluctuation to a sliding mode with low voltagefluctuation and then to a diffuse anode attachment with a long arc-shaped structure. An expanding arc column and high-temperature anode are suggested as essential conditions for the diffuse anode attachment because a thinner and hotter anode boundary layer may be promoted. In addition, the time-resolved transformation of different modes exhibits a strong mutual influence between the arc column and anode attachment, which indicates complex coupling mechanisms exist in the near-anode region. |
资助项目 | National Natural Science Foundation of China[11705202] ; Anhui Provincial Natural Science Foundation[1808085MA12] |
WOS关键词 | HIGH-INTENSITY ARCS ; BOUNDARY-LAYER ; PLASMA TORCH ; ROOT BEHAVIOR ; INSTABILITIES ; JETS |
WOS研究方向 | Engineering ; Physics |
语种 | 英语 |
出版者 | SPRINGER |
WOS记录号 | WOS:000459000900004 |
资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation |
内容类型 | 期刊论文 |
源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/42018] |
专题 | 中国科学院合肥物质科学研究院 |
通讯作者 | Xia, Weidong |
作者单位 | 1.Univ Sci & Technol, Dept Thermal Sci & Energy Engn, Hefei 230027, Anhui, Peoples R China 2.Chinese Acad Sci, Hefei Inst Phys Sci, Hefei 230031, Anhui, Peoples R China |
推荐引用方式 GB/T 7714 | Wang, Cheng,Sun, Lu,Sun, Qiang,et al. Experimental Observations of Constricted and Diffuse Anode Attachment in a Magnetically Rotating Arc at Atmospheric Pressure[J]. PLASMA CHEMISTRY AND PLASMA PROCESSING,2019,39(2):407-421. |
APA | Wang, Cheng,Sun, Lu,Sun, Qiang,Zhang, Zelong,Xia, Weiluo,&Xia, Weidong.(2019).Experimental Observations of Constricted and Diffuse Anode Attachment in a Magnetically Rotating Arc at Atmospheric Pressure.PLASMA CHEMISTRY AND PLASMA PROCESSING,39(2),407-421. |
MLA | Wang, Cheng,et al."Experimental Observations of Constricted and Diffuse Anode Attachment in a Magnetically Rotating Arc at Atmospheric Pressure".PLASMA CHEMISTRY AND PLASMA PROCESSING 39.2(2019):407-421. |
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