We present a new numerical method to solve the Vlasov-Darwin and Vlasov-Poisswell systems which are approximations of the Vlasov-Maxwell equation in the asymptotic limit of the infinite speed of light. These systems model low-frequency electromagnetic phenomena in plasmas, and thus "light waves" are somewhat supressed, which in turn allows thenumerical discretization to dispense with the Courant-Friedrichs-Lewy condition on the time step. We construct a numerical scheme based on semi-Lagrangian methods and time splitting techniques. We develop a four-dimensional phase space algorithm for the distribution function while the electromagnetic field is solved on a two-dimensional Cartesian grid. Finally, we present two nontrivial test cases: (a) the wave Landau damping and (b) the electromagnetic beam-plasma instability. For these cases our numerical scheme works very well and is in agreement with analytic kinetic theory.
@article{bwmeta1.element.bwnjournal-article-amcv17i3p361bwm, author = {Besse, Nicolas and J. mauser, Norbert and Sonnendr\"ucker, Eric}, title = {Numerical approximation of self-consistent Vlasov models for low-frequency electromagnetic phenomena}, journal = {International Journal of Applied Mathematics and Computer Science}, volume = {17}, year = {2007}, pages = {361-374}, zbl = {1149.82028}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-amcv17i3p361bwm} }
Besse, Nicolas; J. mauser, Norbert; Sonnendrücker, Eric. Numerical approximation of self-consistent Vlasov models for low-frequency electromagnetic phenomena. International Journal of Applied Mathematics and Computer Science, Tome 17 (2007) pp. 361-374. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-amcv17i3p361bwm/
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