suction passage

Flow field of centrifugal pump ( Pump flow passage includes suction pipe, impeller and volute casing.) was obtained by solving the Reynolds average Navier-Stokes equation.

通过求解包括进水管、叶轮、泵体等过流部件在内的水泵流道内的三维稳定雷诺平均Navier-Stokes方程，获得水泵内部的流场分布特征。

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The results obtained describe the flow structure in the corner between the end-wall and blade suction surface in detail. Besides a passage vortex with in the passage, there exist a shed corner vortex pair and a secondary vortex pair in the corner.

结果表明：叶栅通道内不仅存在通道涡，而且在吸力面与端壁形成的角区内存在一角区脱落涡对和一二次涡对。

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A method to improve the efficiency of the turbine through-flow passage using the technique of boundary layer suction is introduced.

介绍采用边界层抽吸提高透平通流部分效率的方法。

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Determination Analysis of Trailing Suction Hopper Dredger at North Passage Dredging Site

耙吸挖泥船北槽疏浚现场测定分析

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In comparison with these of the straight cascade the blade positively curving reduces the quantity of the critical points, eliminates the upper passage vortex, and transform the closed separated flow of the secondary vortex along the blade tip suction side into the open separated flow.

与直叶栅比较，叶片正弯明显减少了壁面与横截面流场中奇点的数量，消除了上通道涡，并使叶顶吸力边的二次涡分离流动由闭式分离转变为开式分离。

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