Effective application of supercomputers in plasma physics computations with particle-in-cell method
Berendeev E.A., Ivanov A.V., Lazareva G.G., Snytnikov A.V.
Two problems of computational plasma physics are considered. The first is the interaction of relativistic electron beam with plasma. The second is plasma electron dynamics in the magnetic trap with inverse magnetic mirrors and multipole magnetic walls. The models are built on the basis of Particle-In-Cell method. The problems of this sort require large amount of computations. Thus they are feasible only with supercomputers. In order to achieve uniform and complete workload of the computational nodes of a supercomputer mixed Eulerian-Lagrangian decomposition is used. As a result of computational experiments on the interaction of relativistic electron beam with plasma the density modulation was reproduced that occurs also in real experiments. For the problem of plasma electron dynamics in the magnetic trap the trajectories of electrons were obtained.
