The Dynamics And Motions Of Dust Particles In Two And Three Negatively Charged Particle System: Theory And Modelling

摘要

The motion of dust particles in the potential of the form v? = ?a/r+b/r~2 has been discussed. This form of potential comes from the combination electrostatic (F_(es)=c/r~3?) and shadowing (F_(shadow?) = ??d/r~2) forces affecting to two negatively charged dust particulates. The electrostatic force between them is repulsive, while the shadowing force is attractive. In this paper we will show that the dynamics and motions of dust particles vary with plasma parameters and also we can investigate the dynamics and motions of dust grains in three negatively charged dust particles via theory and modelling. The possible motions of dusts particulates are studied and discussed through the equipotential curves obtained via simulation.