本文采用NUMECA的FINE/Turbo软件包数值分析了一个高压比离心叶轮的三维定常粘性流场.选用二阶精度的中心格式和Spalart-Allmaras的一方程湍流模型.通过与现有实验结果(包括性能曲线、外环壁静压和截面马赫数分布等)的比较对计算结果就行了详细的确认,同时讨论了网格密度和间隙尺度、以及不同的数据处理方法对计算结果确认的影响.
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