Development of Method of Geometrically-adaptive Nets for Solving 3D-Problems of Gas-dynamics in Nozzles

A method of geometrically-adaptive nets for solving non-stationary 3D-problems of a flow of combustion products in nozzles is developed. Based on the method a numerical simulation of gas dynamic processes is conducted for the flow of products of solid fuel burning in the combustion chamber of the solid-rocket motor. It is shown that parameters of stationary flow regime in the nozzle tract are influenced by taking into account the viscosity of combustion products.