INFLUENCE OF HEAT TRANSFER, TURBULENCE, AND KINETICS ON A FLOW IN MODEL HIGH-SPEED COMBUSTION CHAMBER WITH STEP
New results of numerical simulation of flow with combustion of hydrocarbon fuel in a model high-speed combustion chamber with a step are presented. Two-dimensional calculations in different formulations are described: with modeling of nonstationary heat transfer across the chamber walls; with a given wall temperature; with different models of turbulence; in the quasi-laminar approximation and with taking into account the turbulence-combustion interaction; and with the use of different models of chemical kinetics. Both oscillatory combustion regimes and the stationary ones are obtained. The results of the calculations are compared with the experiment.