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A lattice model for the early stages of electrification of a cloud

par Nicolis, Catherine;Nicolis, Grégoire ;Kozak, John
Référence Physical Review E (Statistical, Nonlinear, and Soft Matter Physics), 67, 6, page (061104)
Publication Publié, 2003

Article révisé par les pairs

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Résumé :

The early stages of the microphysics of the electrification process within a cloud are considered using a two-dimensional lattice model. Using insights generated from Monte Carlo simulations and the theory of finite Markov processes, the mean walk length statistics of the particles, the instantaneous electric potential and electric field profiles, the time evolution of electrostatic energy and their dependence on system size are studied. Some unexpected features of the kinetics of electrification and of the statistics of crossings of the threshold for an electric discharge to occur are brought out. © 2003 The American Physical Society.