The Research of Magnetorotational Instability and Accretion in Keplerian Disk Based on HLLD Rieman Solver

The linear analysis of the local MRI evolution in differentially rotating media of astrophysical disk was carried out. The dispersion law for axisymmetric approach has been obtained.
The MHD equations were solved numerically for small two-dimensional neighborhood of selected point in keplerian disk. Dependence of turbulent viscosity parameter on initial conditions have been analyzed.