摘要
吸积盘中由于吸积物质的径向运动,盘内物质间沿径向的粘滞力将会对盘的性质产生影响,本文着重研究了径向粘滞力对三维磁场的等温薄盘稳定性影响问题.结果发现:径向粘滞力的引入不会产生新的稳定或不稳定模式,且不改变粘滞模式的稳定性质,但对磁声波模式的稳定性有较大的影响.这一影响的大小与扰动波长和盘的不同区域有关.本文还对径向粘滞力对盘的稳定性影响作了物理解释.
The instability of an isothermal thin disk with three dimensional magnetic fields and radial viscous force is analyzed.We find that the introduction of radial viscous force will not give rise to any new mode and have no influence on stability of viscous modes,but more influence on the stability of magneto acoustic modes,which is related to perturbation wavelenth and different parts of disk.This may be explained by its dissipation effect on the energy of the wave propagation.
出处
《华中师范大学学报(自然科学版)》
CAS
CSCD
北大核心
1998年第3期290-297,共8页
Journal of Central China Normal University:Natural Sciences
基金
国家自然科学基金