Computations of a New Rocket Engine Based onSupermulti-jets Colliding with Pulse

摘要

A new type of rocket engine that uses the new compressive combustion principle based on supermulti-jets colliding withpulse, which may further improve the thermal efficiency of present rocket engines, is proposed. In this research, wecalculate the flow inside the combustion chamber of our new rocket engine by computation, based on the unsteadythree-dimensional compressible Navier-Stokes equation, by using a method alike the C-CUP method. Computationalresults of the new rocket engine showed that auto-ignition occurred near the center of the chamber, and the pressure of thecombustion chamber increased to 3-6 times the value of fuel tanks. By using a shock-tube, we also examined the collisionof jets without fuel by experiment. Experiment results agreed fairly well with computation results, showing validity forour computation method.