低比转速离心叶轮内部流动的数值计算

Numerical evaluation of inner flow passing low-speed centrifugal impeller

针对目前准三维方法在低比转速离心叶轮的流场计算中的结果不太令人满意的现实情况 ,将奇点分布法用于该领域的计算 ,并经实例计算验证了该方法的可行性 ,且在计算过程中显示出该方法的简单。

In view of the case that the calculation accuracy of existing quasi three dimensional method for the flow calculation within centrifugal impeller with low specific speed is still dissatisfactory, the singularity distribution method is adopted to calculate such flow field. The feasibility of this method is verified by an engineering illustration and, moreover, it is shown by the calculation process that this method is simple featuring quick obtainable and highly accurate results.