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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。
In theory, the detonation entropy increase is smaller, and the rotary detonation engine has higher thermal efficiency and specific impulse than the conventional deflagration engine. In this paper, the structure, detonation mode, propulsion performance, thermal measurement and instability of rotary detonation engine are studied. The results show that the experimental and numerical simulation of the engine has been carried out at home and abroad in large quantities, but the experimental data are not comprehensive enough and the measurement methods are limited. However, the detonation wave itself poses severe requirements for engine reliability design. Therefore, the application of rotary detonation engine To be further studied and developed. Finally, the paper summarizes the challenges faced by the rotary detonation engine and points out that the engine has certain application prospects in flame stabilizer and magnetohydrodynamic power generation.