Gas dynamic processes in the accretion disk of the binary star system

Numerical simulation of the accretion disk evolution in the binary system is realized. The initialstate of the disk is presented by physically substantiated equilibrium configuration for a gaseous cloud. The way of the appearance of the spiral shock waves and connected with them angular momentum losses are investigated. The influence of the binary system parameters and initial disk configuration on the processes are analyzed. The comparison of numerical results obtained by TVD Roe scheme and the Big Particles difference scheme is also carried out.