Stability of an isothermal disc with three-dimensional magnetic fields and radial viscous force

作     者：Ding Shixue 

作者机构：襄阳师范高等专科学校物理系441053 

出 版 物：《湖北文理学院学报》 (Journal of Hubei University of Arts and Science)

年 卷 期：1998年第31卷第2期

页      面：9-18页

学科分类：080103[工学-流体力学] 08[工学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by the National Nature Science Foundation the National Climbing Programme on the Fundamental Research of china 

主　　题：Accretion disk MHD Stability Radial viscous force 

摘      要：The stability of an isothermal thin disk with three-dimensionalmagnetic fields and radial viscosity force is examined in this paper. We findthat the radial viscous force has no influence on stability of viscous modes. Butthere are more influence on the stability of magneto-acoustic modes, which isrelated to the perturbation wavelenth and different parts of disc .Finally, weuse our model to explain the long term variability of Quasar 3C345.