Results show that the effects of incoming Mach number and the nozzlegeometry are pronounced, while the jet-momentum ratio has little affects on the gains defined here.
结果表明，马赫数和喷口布局对增益特性均有显著影响，但本文定义的增益因子却基本与动量比无关。
2
The influence of primary flow and secondary nozzlegeometry on ejector effect and thrust was investigated, and the approach to increase thrust of rocket ejector was found gradually.
研究了一次流参数和二次喷管结构对引射效能和发动机推力的影响，找到了逐步提高推力的措施。
3
The vehicle variable geometry turbocharger (VGT) with pneumatic and symmetric nozzle ring vane was researched.