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为了验证连续旋转爆轰发动机起爆过程和传播机理的理论研究,采用了1.0mm,1.6mm以及2.0mm三种尺寸的倾斜环缝喷孔结构,以H_2/O_2切向喷注的预爆轰管进行起爆,进行了H_2/Air组合方式的连续旋转爆轰发动机试验研究。试验结果表明,1.6mm环缝获得了最佳的试验结果,爆轰波频率为5.0~5.3kHz,对应的传播速度为1460.1~1547.7m/s。通过对旋转爆轰波传播机理的分析,验证了爆轰波存在三种传播方式:正转、反转和双波头对撞。
In order to verify the theoretical research on the detonation process and propagation mechanism of continuous rotary detonation engine, the sloping annular orifice structure of 1.0mm, 1.6mm and 2.0mm sizes was adopted. The pre-detonation tube with H 2 / O 2 tangential injection The detonation engine was tested by H_2 / Air combination continuous rotary detonation engine. The experimental results show that the best experimental results are obtained for 1.6mm girth. The detonation frequency is 5.0 ~ 5.3kHz and the corresponding propagation velocity is 1460.1 ~ 1547.7m / s. Based on the analysis of the propagation mechanism of the rotary detonation wave, it is verified that there are three propagation modes of the detonation wave: forward rotation, reverse rotation and double-wave head collision.