【摘要】 研究了带后置导叶的喷水推进轴流泵的三维流场,采用k-ε湍流模型和SIMPLEC算法对流场进行了数值模拟,分析了叶片表面的压力分布.模拟得到的总性能曲线与实验曲线比较吻合.模拟结果表明,导叶出口面上轴向速度与圆周速度的分布不均匀,与设计目的是一致的.更多还原

【Abstract】 This paper presented the investigation of 3-D flows in a water-jet axial flow pump with a rear stator. In the numerical modeling, k-ε turbulence model and SIMPLEC scheme are employed. The detailed flows and pressure fields such as the pressure distribution on blade surfaces were analyzed. The global performance was obtained and compared favorably with the experimental results. The distributions of axial and tangential velocities at the outlet of the stator are shown to be non-uniform, which are consistent with the design intent.更多还原