旋转爆轰发动机的研究进展

理论上爆轰熵增较小,旋转爆轰发动机比常规的爆燃发动机具有更高的热效率和比冲。文中对旋转爆轰发动机的燃烧室结构、爆轰方式、推进性能、热测量和不稳定性等方面进行了研究。结果表明该发动机的实验和数值模拟研究在国内外已经大量开展,但实验数据不够全面,测量手段有限;而爆轰波自身特性给发动机可靠性设计提出苛刻要求,因此旋转爆轰发动机的应用还有待进一步研究和发展。最后,文中总结了旋转爆轰发动机面临的挑战,并指出该发动机在火焰稳定器和磁流体动力发电方面有一定的应用前景。

Advances in Rotating Detonation Engine Research

Rotating detonation engines have higher thermal efficiency and specific impulse than conventional deflagration engines due to detonation of low entropy production. A survey of combustor structures, detonation mode, propulsion performance, thermal measurement and detonation instabilitiy is conducted in the current research. However, there are not enough experimental data and measurement instruments, and rotating detonation makes the reliability design of engines very difficult. Thus, there is a long way for the engine application. Especially, rotating detonation engines can be applied to flame holders and magnetohydrodynamic generators.