17:15 〜 18:30
[PEM15-P10] Contour dynamics simulation of Vlasov-Possion plasma
キーワード：プラズマシミュレーション、波動粒子相互作用
We have developed a contour dynamics (CD) method for the Vlasov-Poisson system with the periodic boundary condition. The CD method is advantageous in tracking the phase-space dynamics in collisionless plasma where stretching and folding processes of the distribution function are well captured in comparison to the convenctional Vlasov or particle-in-cell approaches.
In this study, we have applied the newly developed CD code to the nonlinear Landau damping of the one-dimensional Vlasov-Poisson system, and have observed successive generation of the phase-space hall structures while preserving the topological constraint on defomation of the distribution function. The obtained results are also compared with the Vlasov simulation results to discuss advantages and/or disadvantages of the CD simulation of the Vlasov-Poisson plasma.
In this study, we have applied the newly developed CD code to the nonlinear Landau damping of the one-dimensional Vlasov-Poisson system, and have observed successive generation of the phase-space hall structures while preserving the topological constraint on defomation of the distribution function. The obtained results are also compared with the Vlasov simulation results to discuss advantages and/or disadvantages of the CD simulation of the Vlasov-Poisson plasma.