Experimental investigation of the pulse detonation rocket engines with variable cross-section
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摘要: 在8Hz频率下,以煤油为燃料,氧气为氧化剂,当量比为1.0的条件下,进行了变截面脉冲爆震火箭发动机的实验研究,其中包括等截面发动机,扩张型发动机,收敛型发动机,扩张-收敛型以及收敛-扩张型发动机.总结出了发动机横截面积变化影响爆震波传播的一些规律,得到了横截面积变化对发动机平均推力的影响.Abstract: The pulse detonation rocket engine(PDRE) with variable cross-section was investigated using kerosene as fuel and oxygen as oxidizer at the equivalence ratio 1.0 and the working frequency of 8Hz, including constant cross-section engine, divergent engine, convergent engine, divergent-convergent engine and convergent-divergent engine. The effect of cross-section change on the propagation process of detonation in the pulse detonation rocket engine was studied. We could also obtain the effect of cross-section change on the average thrust of engines.
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