论文标题
回流磁盘
Backflow in Accretion Disk
论文作者
论文摘要
薄流体动力积聚盘的分析溶液表明，对于某些值，磁盘中积分流的粘度参数部分部分不是指向恒星，而是朝相反的方向。我们通过进行流体动力学模拟来研究薄磁盘，并将数值与分析结果进行比较。我们确认，对于小于临界值的粘度系数，磁盘中间平面附近有模拟的回流。如分析溶液所预测的那样，从恒星到回流的起点的距离随粘度而增加。当粘度系数大于关键时，磁盘中没有回流。
Analytical solution for a thin hydrodynamic accretion disk shows that for some values of the viscosity parameter part of the accretion flow in the disk is not towards the star, but in the opposite direction. We study thin disks by performing hydrodynamic simulations and compare the numerical with analytical results. We confirm that for viscosity coefficient smaller than a critical value, there is a backflow in simulations near the disk mid-plane. The distance from the star to the starting point of backflow is increasing with viscosity, as predicted by the analytical solution. When the viscosity coefficient is larger than critical, there is no backflow in the disk.
