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A Scalable Full-Electromagnetic Vlasov Solver for Cross-Scale Coupling in Space Plasma

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4 Author(s)
Umeda, T. ; Solar-Terrestrial Environ. Lab., Nagoya Univ., Nagoya, Japan ; Fukazawa, K. ; Nariyuki, Y. ; Ogino, T.

Numerical schemes for solving the Vlasov-Maxwell system equations are studied. For studies of cross-scale coupling between fluid-scale dynamics and particle-scale kinetics in collisionless plasma, both highly scalable kinetic code and huge supercomputer are essential. In the present study, a new parallel Vlasov-Maxwell solver is developed by adopting a stable but less dissipative scheme for time integration of conservation laws. The new code has successfully achieved a high scalability on massively parallel supercomputers with multicore scalar processors. The new code has been applied to 2P3V (two dimensions for position and three dimensions for velocity) problems of cross-scale plasma processes such as magnetic reconnection, Kelvin-Helmholtz instability, and interaction between the solar wind and an asteroid.

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Plasma Science, IEEE Transactions on  (Volume:40 ,  Issue: 5 )