| The distribution pattern of the electron density and the electron temperature in a weakly compressible argon plasma jet measured by a Langmuir triple probe | |
Cao JW(曹进文)1,2 ; Meng X(孟显)1; Han N(韩宁)1,2; Pan WX(潘文霞)1,2; Wu CK(吴承康)1,2; Huang HJ(黄河激)1,2
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| Corresponding Author | Huang, Heji(huang@imech.ac.cn) |
| Source Publication | PLASMA SOURCES SCIENCE & TECHNOLOGY
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| 2022-04-01 | |
| Volume | 31Issue:4Pages:15 |
| ISSN | 0963-0252 |
| Abstract | High-speed plasma plays an important role in diverse areas. Plasma flow with a sufficiently high speed to arouse compression is usually not in thermal equilibrium, and the plasma characteristics are closely coupled with the flow field. The relation between the flow and the plasma parameters, especially the distributions of electron density, i.e. n (e), and the electron temperature, i.e. T (e), are of ultimate importance; however, this is not yet completely understood. In this work, a weakly compressible plasma jet produced by an arc torch is diagnosed using a Langmuir triple probe. The two-dimensional distributions of n (e) and T (e) are obtained consisting of 80 spatial points under arc currents of 70-100 A. The spatial patterns of the distributions demonstrate alternative expansion-compression wave structures. As the arc power increases, the wave structures remain almost unchanged, while n (e) increases monotonically. Moreover, in some regions T (e) decreases with the arc power, which has seldom been reported in the literature. In addition, the peaks of the radial distributions of T (e) always deviate from the central axis. These results are compared with previous works of strongly compressible plasma flows. The phenomena are then analyzed and explained from the perspective of fluid wave-plasma interactions and the actions of the ambipolar field in the electrons. |
| Keyword | high-speed plasma electron density electron temperature triple probe expansion-compression nonequilibrium weakly compressible |
| DOI | 10.1088/1361-6595/ac5c5e |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000793494500001 |
| WOS Keyword | SAHA EQUATION ; THERMODYNAMIC DERIVATION ; FLOW ; TORCH |
| WOS Research Area | Physics |
| WOS Subject | Physics, Fluids & Plasmas |
| Funding Project | Strategic Priority Research Program of the Chinese Academy of Sciences[XDA17030100] ; National Natural Science Foundations of China[11735004] ; National Natural Science Foundations of China[11575273] ; Hainan Province Science and Technology Special Fund[ZDKJ2019004] ; LHD Youth Innovation Fund from the State Key Laboratory of High Temperature Gas Dynamics |
| Funding Organization | Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundations of China ; Hainan Province Science and Technology Special Fund ; LHD Youth Innovation Fund from the State Key Laboratory of High Temperature Gas Dynamics |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Huang, Heji |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/89370 |
| Collection | 高温气体动力学国家重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China; 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Cao JW,Meng X,Han N,et al. The distribution pattern of the electron density and the electron temperature in a weakly compressible argon plasma jet measured by a Langmuir triple probe[J]. PLASMA SOURCES SCIENCE & TECHNOLOGY,2022,31,4,:15. |
| APA | 曹进文,孟显,韩宁,潘文霞,吴承康,&黄河激.(2022).The distribution pattern of the electron density and the electron temperature in a weakly compressible argon plasma jet measured by a Langmuir triple probe.PLASMA SOURCES SCIENCE & TECHNOLOGY,31(4),15. |
| MLA | 曹进文,et al."The distribution pattern of the electron density and the electron temperature in a weakly compressible argon plasma jet measured by a Langmuir triple probe".PLASMA SOURCES SCIENCE & TECHNOLOGY 31.4(2022):15. |
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| Jp2022FA437.pdf（3987KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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