论文标题
模拟MHD积聚磁盘中的回流
Backflow in simulated MHD accretion disks
论文作者
论文摘要
我们用α-粘度进行积聚磁盘的电阻MHD模拟，并在带有磁偶极子的旋转恒星上积聚。我们发现在存在强磁场和较大电阻率的情况下的回流，以及探测对PrandTL数字的依赖。我们发现，在磁性情况下，距回流开始的恒星的距离，停滞半径与流体动力的情况不同，并且回流显示非平稳行为。我们将结果与流体动力学模拟进行比较。
We perform resistive MHD simulations of accretion disk with alpha-viscosity, accreting onto a rotating star endowed with a magnetic dipole. We find backflow in the presence of strong magnetic field and large resistivity, and probe for the dependence on Prandtl number. We find that in the magnetic case the distance from the star at which backflow begins, the stagnation radius, is different than in the hydrodynamic case, and the backflow shows non-stationary behavior. We compare the results with hydrodynamics simulations.
