Abstract
The ion density and electric potential distribution are found within the linear kinetic approach using the dielectrical permittivity of a flowing collisional plasma around a charged particle. The parameters of the disturbed plasma flow near the dust particle are also calculated numerically through a self-consistent solution of the ion kinetic equation and the Poisson equation with the particle-in-cell Monte Carlo collision algorithm. Scaling laws are formulated from an analysis of the linear kinetic equation. Comparison of the ion and potential distributions for sub- and supersonic ion flows in the collisional and collisionless regimes lends support to these scaling laws for flowing plasmas.
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