To explain the generative mechanism of low pressure and mass flow self-excited oscillation pulsed jet, the nozzle optimized design range of structure and operation parameters was investigated.

为了揭示低压大流量下自激振荡脉冲射流清洗的脉冲发生机理，研究了这种工况下喷嘴结构和运行参数的优化设计范围。

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By theoretical calculation and analysis, the necessary liquid pressure and jet nozzle specification are determined.

通过理论计算和分析确定所需压力和喷嘴大小。

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The quality of is directly influenced by the performance of air-jet loom nozzle, so it is necessary to measure the pressure of air field which is formed by the nozzle.

喷气织机主辅喷嘴性能的好坏直接影响到织机气流引纬的质量，因此了解喷嘴气流场的压力情况十分必要。

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