The pressure in rocket tanks and the pressure on the inlet of main pumps can be increased by using boost pumps, so as to ensure that the main pumps can work reliably without cavitation erosion.
使用辅助增压泵可降低贮箱压力，并提高发动机主泵的入口压力，以保证主泵在没有汽蚀的条件下可靠工作；
2
The performance of supersonic inlet determines the pressure and the air flux in combustor, then affect the work of ramjet.
超声速进气道的性能优劣决定了补燃室流场内的压强和空气流量，进而影响到冲压发动机的工作性能。
3
This work is useful for the design of the inlet and relevant devices in supersonic vehicles.