Nonlinear evolution of parallel propagating Alfven waves: Vlasov - MHD simulation

摘要

Nonlinear evolution of circularly polarized Alfv\'en waves are discussed byusing the recently developed Vlasov-MHD code, which is a generalizedLandau-fluid model. The numerical results indicate that as far as thenonlinearity in the system is not so large, the Vlasov-MHD model can validlysolve time evolution of the Alfv\'enic turbulence both in the linear andnonlinear stages. The present Vlasov-MHD model is proper to discuss the solarcoronal heating and solar wind acceleration by Alfve\'n waves propagating fromthe photosphere.