电场
电离
等离子体
湿度
日冕(行星地质学)
半径
流光放电
相对湿度
机械
水蒸气
离子
水槽(地理)
化学
原子物理学
气象学
物理
核物理学
计算机安全
地图学
有机化学
量子力学
天体生物学
计算机科学
维纳斯
地理
作者
A. Malagón-Romero,Alejandro Luque
标识
DOI:10.1088/1361-6595/ac969f
摘要
We investigate the effect of humidity on the propagation of streamers in air. We present a minimal set of chemical reactions that takes into account the presence of water in a nonthermal air plasma and considers ionization, attachment, detachment, recombination and ion conversion including water cluster formation. We find differences in streamer propagation between dry and humid air that we attribute mostly to an enhanced effective attachment rate in humid air, leading to higher breakdown electric field and threshold field for propagation. This higher effective attachment rate in humid conditions leads to a faster decay of the conductivity in the streamer channel, which hinders the accumulation of charge in the streamer head. In some cases a propagating streamer solution still exists at the expense of a smaller radius and lower velocity. In other cases a high humidity leads to the stagnation of the streamer. We finally discuss how all these statements may affect streamer branching and the dimensions and lifetime of a streamer corona.
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