According to the official Weibo of China Aerospace Science and Technology Corporation, the hydrogen-oxygen rotating detonation rocket engine developed by the Beijing Aerospace Power Research Institute of the Sixth Academy of China Aerospace Science and Technology Corporation has completed a long-term thermal test.At the same time, the test broke through the thermal protection technology of the hydrogen-oxygen rotating detonation combustion chamber and verified the operating reliability of the hydrogen-oxygen rotating detonation engine under long-term operation.
Detonation combustion is an advanced and efficient combustion method.Compared with traditional rocket engines, rotating detonation rocket engines have the characteristics of extremely fast combustion rate, self-pressurization, small entropy increase, and high thermal cycle efficiency.
However, one or more detonation traveling waves will be excited during operation. The stability and intensity of the waves directly affect the combustion efficiency and rocket engine performance.Rotating detonation rocket engines have good application prospects in rocket propulsion, wide-area ramjet propulsion and combined propulsion.