At the region near the nozzle exit, a vibrating flow phenomenon is found, which is associated with the expansion waves and shock waves reflections inside the gas jet.
发现了在接近喷嘴出口的区域里，出现了与射流内的激波、膨胀波有关的振荡流。
2
A power correlation between expansion ratio and Mach number at the nozzle outlet was found.
并给出了膨胀比与喷嘴出口马赫数之间的幂指数关系。
3
This paper has simulated two-phase flow in a small expansion ratio nozzle.