桨尖喷气驱动系统的实验与数值模拟研究

桨尖喷气驱动是一种很有应用前景的动力驱动类型,针对桨尖喷气驱动系统进行设计研究。通过建立压气机式桨尖喷气驱动系统的实验平台,改变入口条件,测量得到喷气管道内部的流动参数以及桨尖喷口的静推力,进而计算此驱动系统的输出功率,对整个驱动系统的性能进行试验分析,然后采用CFD数值模拟方法对试验的各个流动状态进行仿真计算。结果表明:CFD数值计算结果与试验值吻合的很好,随着入口总压的提高,推力及功率变大,同时说明了CFD数值方法的可靠性,也为CFD数值模拟技术在喷气驱动系统的效率以及动力来源的选择与适配研究提供了参考。

The research of experiment and numerical simulation for the Tip-jet driven system

The tip-jet driven system is a promising power driven device. The designing and studying focuses on tip-jet driven system. A driven system experimental platform based on centrifugal compressor is established, the interior-flow parameters of the pipe and static thrust of the spout by changing the inlet conditions are ob- tained, and then the output power of this driven system is calculated to analyze the characteristics of the system. Further the CFD numerical simulation method is used to simulating various experimental conditions. The results show that the simulation data are well agree with the experiment data, the force and power are bigger when the total pressure are higher. It provide references for CFD numerical simulation technology used in calculating the efficiency of tip-jet driven system and selecting source of the power.