Dynamic characteristics of multi-arc thermal plasma in four types of electrode configurations
文献类型：期刊论文
| 作者 | Zhao, Yanjun1,2,3; Ni, Guohua1,3; Liu, Wei3 ; Sun, Hongmei1,2,3; Sui, Siyuan1,2,3; Li, Dongdong3; Zheng, Huan2,3; Ma, Zhongyang3; Zhang, Chi3
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| 刊名 | PLASMA SCIENCE & TECHNOLOGY
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| 出版日期 | 2022-05-01 |
| 卷号 | 24 |
| 关键词 | multi-arc electrode configuration dynamic character erosion |
| ISSN号 | 1009-0630 |
| DOI | 10.1088/2058-6272/ac4ee7 |
| 通讯作者 | Ni, Guohua(ghni@ipp.ac.cn) |
| 英文摘要 | The enhanced volume of thermal plasma is produced by a multi-arc thermal plasma generator with three pairs of discharge electrodes driven by three directed current power suppliers. Combined with a high-speed camera and an oscilloscope, which acquire optical and electric signals synchronously, the dynamic behavior of different kinds of multi-arc discharge adjusted by the electrode arrangement is investigated. Also, the spatial distributions and instability of the arc discharge are analyzed in four electrode configurations using the gray value statistical method. It is found that the cathodic arcs mainly show a contracting state, while the anodic arcs have a trend of transition from shrinkage to a diffusion-like state with the increase of the discharge current. As a result of the adjustment of the electrode configuration, a high temperature region formed in the center of the discharge region in configurations of adjacent electrodes with opposite flow distribution and opposite electrodes with swirl flow distribution due to severe fluctuation of arcs. The discharge voltage rises with increased discharge current in this novel multi-arc plasma generator. It is also found that anode ablation mainly occurs on the conical surface at the copper electrode tip, while cathode erosion mainly occurs on the surface of the inserted tungsten and the nearby copper. |
| WOS关键词 | TEMPERATURE ; IMPROVEMENT ; LAMINAR |
| 资助项目 | National Natural Science Foundation of China[11875295] ; National Key R&D Program of China[2019YFC0119000] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000782503600001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | National Natural Science Foundation of China ; National Key R&D Program of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/128693]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Ni, Guohua |
| 作者单位 | 1.Anhui Prov Key Lab Med Phys & Technol, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Yanjun,Ni, Guohua,Liu, Wei,et al. Dynamic characteristics of multi-arc thermal plasma in four types of electrode configurations[J]. PLASMA SCIENCE & TECHNOLOGY,2022,24. |
| APA | Zhao, Yanjun.,Ni, Guohua.,Liu, Wei.,Sun, Hongmei.,Sui, Siyuan.,...&Zhang, Chi.(2022).Dynamic characteristics of multi-arc thermal plasma in four types of electrode configurations.PLASMA SCIENCE & TECHNOLOGY,24. |
| MLA | Zhao, Yanjun,et al."Dynamic characteristics of multi-arc thermal plasma in four types of electrode configurations".PLASMA SCIENCE & TECHNOLOGY 24(2022). |
入库方式： OAI收割
来源：合肥物质科学研究院
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