New approach in numerical simulation of internal ballistics SRM problem

In this article new approach of simulating internal ballistics flows in SRM is considered. Two different phenomena should be taken into account for appropriate numerical simulation of internal ballistics problems: grain propellant regression and flow of combustion gases itself The simulation is becoming more complicated as these two phenomena depend on each other: grain burning rate depends on flow parameters near the burning surface while flow parameters in SRM depend on current grain propellant position. Previous articles and theses considered complicated geometry of SRM grain but assumed only ID flows of combustion gases