| Cite this article as: Leng Xue-Jian,Jin Fu-Bao,Ma Shan-Gang,Chen Ke-Yuan. Simulation study of plasma particle characteristics of corona discharge at different altitudes [J]. J. At. Mol. Phys.(原子与分子物理学报), 2025, 42: 033001 (in Chinese) |
| Simulation study of plasma particle characteristics of corona discharge at different altitudes |
| Hits 126 Download times 91 Received:August 28, 2023 Revised:September 11, 2023 |
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| DOI
10.19855/j.1000-0364.2025.033001 |
| Key Words
Plasma Corona discharge COMSOL simulation Electron density |
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| Abstract
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| As an important means of obtaining plasma, the discharge characteristics of corona discharge and its degradation capacity are closely related to the air environment in which it is located. In order to obtain the effects of different altitudes on the corona discharge characteristics and plasma degradation capacity, a hydrodynamic model was established by COMSOL software, and numerical simulations were performed for the discharge models at different altitudes, respectively. The variation laws of physical quantities, such as current waveform, electron density and average electron energy that affect plasma degradation ability, with altitude were investigated. It is calculated that the higher the altitude, the lower the air pressure and the lower the ambient temperature, the higher the peak current pulse, the higher the frequency and the earlier the start-up time. The rise time and fall time of the pulse waveform also change, and the electron density and the average electron energy, which affect the degradation ability of corona plasma, also increase with the altitude. |
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