气固两相粉末燃料爆轰及其推进应用研究进展

Progress in the Research of Gas-solid Powder Detonation and Its Propulsion Applications

粉末燃料因其能量密度高、稳定性好等优势,作为爆轰推进动力系统的燃料或添加剂,具有广阔的应用前景。根据气固两相粉末爆轰的燃料种类进行分类,并以指导粉末爆轰推进技术应用为导向,回顾粉末燃料在氧化剂氛围以及气体燃料/氧化剂氛围中起爆特性和传播特性的国内外研究进展,并对二者进行理论和工程技术的研究归纳,概括影响气固两相爆轰起爆和传播特性的因素以及重要的研究结论。从应用前景、推进性能、难点与挑战等角度对两相爆轰发动机研究进行综述,在总结发动机数值和实验研究现状的基础上,对未来需要开展的研究工作进行展望。

Powdered fuel has broad application prospect prospects as fuels or additives in detonation propulsion systems due to their high energy density and excellent stability.Based on the classification of fuel types for gas-solid two-phase detonation and the application of powder detonation propulsion technology,the theoretical research progress on the detonation initiation and propagation characteristics of powdered fuel in oxidizer gas and gas fuel/oxidizer gas at domentically and internationally is reviewed.The theoretical and engineering aspects of heterogeneous detonation and hybrid detonation are summarized,highlighting the key factors affecting the initiation and propagation characteristics of gas-solid two-phase detonations,as well as important conclusions.Furthermore,the two-phase detonation engines are reviewed from the perspectives of application prospects,propulsion performance,difficulties and challenges,etc.Based on the summary of the numerical and experimental research status of powder detonation engines,the future research work that needs to be carried out is prospected.