深水自激吸气脉冲射流喷嘴性能的试验研究

Experimental Research on the Self-Excited Air-Breathing Pulse Jet Nozzle Performance in Deep Water Condition

对自行研制的深水自激吸气式脉冲射流试验装置进行了试验,分析了工作参数对射流均值打击力的影响。结果表明:①射流均值打击力随着工作压力的增大而增大,且增大的速度随围压的增大而减小;②随着吸气量的增大,射流的均值打击力增大,随着围压的增大,射流均值打击力随吸气量增大而增大的速度趋于平缓;③在上喷嘴和腔体结构一定、下喷嘴直径发生变化的情况下,射流均值打击力随围压的增大而逐渐降低。

This paper carried out a lot of experiments on the self-excited air-breathing pulse jet device in the deep-water condition by using self-de-veloped test equipments and analyzed the effect of working parameters to the average of hitting power. The results show that：a）the average of hitting power increases with the working pressure and the increase of speed becomes decreased with the increase of confining pressure;b）the average of hitting power increases with the inspiratory capacity increases,the tendency of the average of hitting power becomes slow down with the increase of confining pressure;c）when on the nozzle and structure parameters of self-excited inspiration pulse jet device are certain and the nozzle diameter changes,the average of hitting power decreases with the increase of confining pressure.