Numerical simulation of shock-wave effects on the return capsule of the manned transport vehicle during the emergency rescue system operation

The paper presents the results of numerical simulation of shock-wave processes accompanying the start of solid-propellant engines of the emergency rescue system of the new manned transport vehicle (MTV) at the launch vehicle failure in the injection phase. The adaptation data of FlowVision software package is given for solving this class of tasks and verifying this software package based on the results of numerical simulation of testing the gas-dynamic model at a scale of 1:10 of the separable payload module of MTV emergency rescue system. During the study the following is made: estimates of the amplitudes of the shock-wave effects on MTV return capsule in different operation modes of the engines of the emergency rescue rocket block in different flight phases of the integrated launch vehicle with MTV. The analysis of the calculation results showed that the maximum values of the shock-wave pressure on the return capsule are implemented during operation of MTV emergency rescue system in the initial flight phase of the launch-vehicle.