利用高速纹影方法对固体推进剂对激光推进作用过程进行了测试,获得了脉冲激光能量作用下推进剂表面流场的产生及发展演变过程。分析结果表明,瞬态激光能量作用下,除了分解、燃烧产物产生的流动以外,还存在一个导引波的快速运动过程,在105～109W/cm2激光功率密度范围内,推进剂类型对其传播速度影响很小。 The process of laser propulsion of solid propellants was tested by high-speed schlieren method, and the generation and evolution of propellant surface flow field under pulsed laser energy were obtained. The analysis results show that in addition to the flow caused by the decomposition and combustion products, there is a fast moving process of the guided wave under the effect of transient laser energy. In the laser power density range of 105 ~ 109W / cm2, the propellant type propagates Little effect on speed.