轴流式水力机械转轮中局限空化流动的面元奇点解法

SOLUTION TO PARTIAL CAVITATION FLOW IN IMPELLER OF AXIAL-FLOW HYDRAULIC MACHINERV BY SURACE-SINGULARITY METHOD

轴流式水力机械转轮中局限空化流动的面元奇点解法刘四清，常近时（北京农业工程大学水利与建筑工程系北京１０００８３）关键词：空化，水力机械，转轮。ＳＯＬＵＴＩＯＮＴＯＰＡＲＴＩＡＬＣＡＶＩＴＡＴＩＯＮＦＬＯＷＩＮＩＭＰＥＬＬＥＲＯＦＡＸＩＡＬ－ＦＬＯＷＨ...

In this article, supposing that the fluid is invisid incompressible and potential. The authors analyze and calculate partial cavitation flow around two-dimensional straight-linecascade by using surface-singularity method and nolinear theory.So the shape of cavity and the distribution of pressure and velocity on blade surfaCe are obtained. In this paper, the calculating formula of partial cavitation flow in axial-flow hydraulic machinery are given.By calcalation the cavitation range and maximum thickness of cavity and it's position can be determined.