Computational model for fuel component supply into a combustion chamber of LRE

Abstract

A 2D-3D computational model for calculating a flow inside jet injectors that feed fuel components to a combustion chamber of a liquid rocket engine is described. The model is based on the gasdynamic calculation of compressible medium. Model software provides calculation of both one-and two-component injectors. Flow simulation in two-component injectors is realized using the scheme of separate supply of" gas-gas" or" gas-liquid" fuel components. An algorithm for converting a continuous liquid medium into a" cloud" of drops is described. Application areas of the developed model and the results of 2D simulation of injectors to obtain correction factors in the calculation formulas for fuel supply are discussed.