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本文比较了求解叶轮机械中带激波的三维跨音流场的两种不同的途径，着重分析了 文献［２］中存在的错误并指出［２］中所给出的三个程序没有一个能用来计算 Ｓ１流面上的 带激波的跨音流场。在此基础上，得到如下初步结论：两族相对流面理论未必是求解当 代叶轮机械中带激波的三维跨音流场的好方法，相反，直接求解三维流动的方法是更为 可取的。
This paper compares two different approaches to solve the three-dimensional transonic flow field in a turbomachinery with emphasis on the existence of errors in [2] and points out that none of the three programs given in [2] It is used to calculate the transonic flow with shock on S1 surface. On this basis, the following preliminary conclusions are obtained: The relative flow surface theory of two families may not be a good method to solve the three-dimensional transonic flow field with shock waves in contemporary impeller machinery. On the contrary, it is more advisable to directly solve the three-dimensional flow.