Open AccessTheoretical study on charging equation of dust plasmas in double Maxwellian distribution
Author(s) -
Xueliang Li,
Yanxiang Shi
Publication year - 2014
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.63.215201
Subject(s) - physics , plasma , ionization , atomic physics , electric field , relaxation (psychology) , computational physics , electron , thermal , mechanics , ion , quantum mechanics , thermodynamics , psychology , social psychology
According to the charging equation and charge conservation, the charging frequency (electric relaxation rate) is deduced and the formulation of charging electric current of the weakly ionized dust plasma is given according to the double Maxwellian distribution. It is shown that the directional speed have an influence on charging frequency; the charging frequency will decrease with the increase of directional speed; the charging frequency expression are the same as that in the literature when the directional speed is much smaller than the electron thermal velocity.