Open AccessTheoretical study on the rule of plasma temperature decay in the process of lightning dissipation
Author(s) -
Zhao Xue-Yan,
Yuan Ping,
Jie Wang,
Shen Xiao-Zhi,
Guo Yi-Xiao,
Qiao Hong-Zhen
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.3243
Subject(s) - dissipation , radius , lightning (connector) , plasma , mechanics , physics , atomic physics , effective temperature , computational physics , thermodynamics , nuclear physics , power (physics) , quantum mechanics , computer security , computer science , spectral line
The temporal and spatial distributions of the plasma temperature during the dissipation process of lightning are calculated theoretically by applying the equation of motionthe equation of continuity and the equation of energy conservation of hydrostatics. The result shows that the temperature decay at a given radius is quicker in the earlier stage and slower in the later stage; Furthermorethe higher the original temperaturethe quicker the decay. The temperature decays slower when the radius becomes larger. At the same timethe larger the radius of lightning channelthe greater the temperature gradient, and vice versa. According to the time and position of freezing temperature of NOwe can conclude primarily that NOx are produced in the channel of less than 9 mm radius in the time within 50 ms after the lightning return stroke.