Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10357399 | Journal of Computational Physics | 2005 | 30 Pages |
Abstract
Our purpose is to derive a model for charged particles which combines a kinetic description of the fast particles with a fluid description of the slow ones. In a previous paper, a similar model was derived from a kinetic BGK equation that uses a constant relaxation time and does not include the effect of an electric field. In this paper, we consider a more general kinetic equation including an electric field and a varying relaxation time. Fast particles will be described through a collisional kinetic equation of Vlasov-BGK type while thermal particles will be modeled by a hydrodynamic model. Then, we construct a numerical scheme for this model and validate the approach by presenting various numerical tests.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Science Applications
Authors
Nicolas Crouseilles, Pierre Degond, Mohammed Lemou,