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为缩短脉冲爆震室轴向长度以及爆燃向爆震转变距离,设计加工了螺旋脉冲爆震室,采用液态汽油为燃料,空气为氧化剂,进行了一系列实验.在实验过程中,对比研究了常规直管脉冲爆震室以及螺旋脉冲爆震室的爆燃向爆震转变性能;并分析研究了螺旋脉冲爆震室多循环工作特性.结果表明:与直管脉冲爆震室相比,螺旋脉冲爆震室爆燃向爆震转变距离至少缩短了约11.2%;螺旋脉冲爆震室可以在5~20Hz频率下稳定工作;螺旋脉冲爆震室设计方案可行.
In order to shorten the axial length of pulse detonation chamber and the transition distance from detonation to detonation, a spiral pulse detonation chamber was designed and manufactured, and a series of experiments were carried out using liquid gasoline as fuel and air as oxidant. During the experiment, Conventional straight-tube pulse detonation chamber and spiral pulse detonation chamber, and analyzed the multi-cycle operating characteristics of the spiral pulse detonation chamber.The results show that compared with the straight-pulse pulse detonation chamber, the spiral pulse The detonation chamber detonation to knock detonation distance reduced at least about 11.2%; spiral pulse detonation chamber at 5 ~ 20Hz frequency stable operation; spiral pulse detonation chamber design feasible.