CAJ | 학술논문

为探索凝胶燃料在脉冲爆轰发动机中应用的可行性，设计了凝胶汽油脉冲爆轰火箭发动机实验系统。对不同氧含量和凝胶汽油供给工况下的多循环脉冲爆轰发动机进行了热态实验，分析了氧含量和燃料供给工况对爆轰段爆轰压力和波传播速度的影响。实验结果表明，使用凝胶汽油的脉冲爆轰火箭发动机能稳定工作；在氧气质量百分比为42％、凝胶汽油/雾化空气喷射压力系数为2．5/1工况下，距离发动机点火位置770 mm处的爆轰压力均值为2．02 MPa，爆轰波速度均值为1124 m/s。在相同凝胶汽油供给条件下，增加氧含量能够获得更大的爆轰压力和爆轰波速度。研究结果对凝胶燃料和脉冲爆轰发动机应用研究具有参考意义。
위탐색응효연료재맥충폭굉발동궤중응용적가행성，설계료응효기유맥충폭굉화전발동궤실험계통。대불동양함량화응효기유공급공황하적다순배맥충폭굉발동궤진행료열태실험，분석료양함량화연료공급공황대폭굉단폭굉압력화파전파속도적영향。실험결과표명，사용응효기유적맥충폭굉화전발동궤능은정공작；재양기질량백분비위42％、응효기유/무화공기분사압력계수위2．5/1공황하，거리발동궤점화위치770 mm처적폭굉압력균치위2．02 MPa，폭굉파속도균치위1124 m/s。재상동응효기유공급조건하，증가양함량능구획득경대적폭굉압력화폭굉파속도。연구결과대응효연료화맥충폭굉발동궤응용연구구유삼고의의。
An experimental system of pulse detonation rocket engine using gelled fuels was established to explore the feasibility of application of gelled fuels on pulse detonation engines.The hot state tests were accomplished on multi-cycle pulse detonation rock-et engine at different oxygen concentration and supply conditions of gelled fuels.The influences of oxygen concentration and fuel sup-ply conditions on pressure and wave propagation velocity of detonation wave were analyzed. The experimental results indicate that pulse detonation rocket engine can work stably with gelled fuels.With 42% oxygen in filling gases and injection pressure coefficients of fuel and atomizing air at 2.5 and 1,the average value of detonation pressure and wave velocity were 2.02 MPa and 1 124 m/s re-spectively.The pressure and wave velocity of detonation increase with oxygen addition under the same fuel supply conditions.The re-sults have some significant references for application investigation on gelled fuels and pulse detonation engines.