| There exists a certain rule for the change of space and time of atmosphericprecipitation and evaporation on earth, which plays an important role in deciding thedistribution and evolution of surface and ground water resources. However, no matter theelements, construction or the movements of the particles in atmosphere could be certain oruncertain, which is the complexity side of the atmosphere sciences. In order to analyze themacroscopic physical phenomena, we could get a deep research on the space-timeevolution process of the particles in atmosphere via their microcosmic characteristics.As an effective method for studying the nonlinear effect in plasma, particlesimulation could be directly used to solve dependent equations, and with no other physicalapproximate. The movement analyzation for the particle in huge number could be settledby constructing the mathematical model of air plasma through particle simulation.This paper analyzed the physical and chemical properties of air plasma, and thenumerical analyzation theory of particle simulation and collision affection.etc, establishedthe mathematical model for the particle in air plasma. In order to get the numericalsolution by computer calculation, we adopted the discrete approximation on thecontinuous differential and integral equation in the model, and illustrated the questionslike multi-physics field coupling in the process and so on.In this research, we combined Monte Carlo collision with particle simulation programto analyze the collision affection in the air plasma, and separated the collision affectioninto two parts, null collision and coulomb collision, for the convenience of calculation,then verified its feasibility through an example. At last, the numerical diagnosis for theparameters in the system of plasma could be done via the numerical simulation software,which is very helpful for the understanding of the properties of the particles generated bygas discharge, and could provide guidance for the practice in engineering. |
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