Plasma Flow Generation due to the Nonlinear Alfvén Wave Propagation around a 3D Magnetic Null Point

Abstract The behavior of current density accumulation around the sharp gradient magnetic field structure or a 3D null point and with presence finite plasma pressure is investigated. It has to be stated that in this setup, fan plane locates at xy spine axis aligns along z -axis. Current generation acts as barrier for developing less well understood. shock-capturing Godunov-type PLUTO code used solve magnetohydrodynamic set equations context wave-plasma energy transfer. shown propagation Alfvén waves vicinity leads excitations also point. Besides, it pointed out x component oscillatory while y components do not show property. plausible happens because encompasses separating unique topological regions, does have characteristic just line without separate regions. results flow. found defines flow behavior, prescribes