采用RNGk-ε紊流模型计算了轴流泵装置内部的三维紊流流场。通过计算表明,装置在相同的流量下,随着轴流泵叶片厚度减薄,水泵的扬程和轴功率增加,最高效率点向大流量偏移,且最高效率有所提高;叶片压力面的压力增加,使叶轮扬程的增加,而叶片吸力面的压力变化较小,略有增加,使得叶轮空化性能有所改善,最后通过模型试验验证了计算的结果。 Using RNGk-ε turbulence model, the 3D turbulent flow field inside the axial-flow pump was calculated. The calculation shows that with the same flow rate, as the thickness of the axial flow pump blade is reduced, the head and shaft power of the pump increase, the maximum efficiency point shifts to a large flow rate, and the maximum efficiency increases; the pressure on the pressure surface of the blade Increase, so that the impeller lift increase, while the blade suction surface pressure change is small, a slight increase, making the impeller cavitation performance has improved, and finally verified by the model test results.