Riemann problem for three-temperature gas dynamics

Algorithm of Riemann problem for three-temperature model of gas dynamics is described. In case the component equation of state can be present in two-term view the exact solution is obtained. A special iterative process is used for selection of undefined in advance coefficients in generalized equation of state. Pressure and inner energy are modified separately for each of three medium components. The law of total energy preservation is true automatically. During numerical procedure all thee components are equitable as in differential model.