Investigation on Working Performance of Water-jet Gas Turbine Using Solid Propellant
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摘要: 研究了固体推进剂涡轮喷水发动机的工作原理和热功转换过程, 分析了轴流水泵的空化特性, 计算了发动机热功转换效率和推进效率, 获得了典型工作条件下的发动机性能参数。结果表明, 轴流水泵抗空化性能明显优于传统推进器, 合理设计发动机工作参数, 可以实现燃气涡轮与轴流水泵的匹配运行, 为开展固体推进剂涡轮喷水发动机研究提供参考。Abstract: The working principle and heat-to-power conversion of a water-jet gas turbine using solid propellant was in-vestigated, the cavitation performance of the axial pump was analyzed, and the turbine′s heat-to-power conversion effi-ciency and propulsive efficiency were calculated. The results show that the anti-cavitation performance of the axial pump at high rotary speed is better than that of the conventional screw propeller, and matched operation of the gas tur-bine and the axial pump can be implemented by reasonable design of the working parameters of gas turbine.
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Key words:
- solid propellant /
- water-jet gas turbine /
- propulsive efficiency /
- cavitation
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