Research on the Influence of Reflected Shock Wave on Continuously Rotating Detonation Engine

AbstractThe Continuously Rotating Detonation Engine (CRDE) is a new concept of aerospace propulsion. The detonation wave propagatescircumferentiallyaround the annular combustor with only one ignition. Compared with conventional engines with deflagration or other detonation engines, CRDEs are simpler, more powerful and more stable. The experimentsof this study are carried out with hydrogen/oxygen.Influences of reflected shock wave reduced by the groove on the wall of combustor and by obstacles downstream are discussed. Experimental results show that small groove or indentations on the combustor wall does not affect detonation waves a lot. But downstream obstacles may result in strong reflected shock wave and kills the detonation waves