Control of Processes of Ignition and Combustion Stabilization in the Supersonic Combustion Chamber

In the paper, results of mathematical modeling of a flow in the supersonic combustion chamber are presented, which have been performed under the conditions of burning initiation by means of an electronic bunch of high energy on the basis of the offered ignition model. Calculations are carried out on the basis of the Reynolds averaged Navier – Stokes equations supplemented by the k–ω SST turbulence model and detailed chemistry kinetics. As a result of numerical modeling, it has been shown that in a frame of the offered model it is possible to predict the ignition of mixture at low stagnation temperatures. The numerical results confirm the experimental data. It is shown that the choice of the optimum scheme of stabilization and the stabilizer geometry allows one to get the flame propagation over all the channel and to provide the stability of combustion even at high flow Mach numbers. The offered mathematical model has allowed defining the conditions of ignition.

Keywords:
combustion chamber, mathematical simulation, ignition, a supersonic flow, combustion stabilization. 
УДК 533.6.011.5; 533.6.072

Control of Processes of Ignition and Combustion Stabilization in the Supersonic Combustion Chamber