The average velocity magnitude of the rangenozzle increased with the increasing of inlet pressure but spreader nozzle would not.
喷头主、副喷嘴的平均湍动能随入口压力增大而增大，不受主喷嘴直径变化的影响。
2
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.
The vibrational stress analysis and the application range of the side entry blade are introduced in this paper, and the suggestion of the nozzle arrangement is also given.