Vlasov model using kinetic phase point trajectories

Details Vlasov model using kinetic phase point trajectories Vlasov model using kinetic phase point trajectories

2010-11-02

arxiv.org/abs/1011.0578v2

Physics

Plasma Physics

Scientific paper

A method of solution of the collisionless Vlasov equation, by following collisionless phase point trajectories in phase space, is presented. It is shown that by increasing the number of phase points, without enhancing the resolution of phase space grid, the accuracy of simulation will be improved. Besides, the phase points spacing introduces a smaller scale than grid spacing on which fine structures might be more conveniently handled. In order to perform simulation with a large population of phase points, an effective interpolation scheme is introduced that reduces the number of operations. It is shown that by randomizing initial position of the phase points along velocity axis, the recurrence effect does not happen. Finally, the standard problem of linear Landau damping will be examined.

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