流体机械

1989, (03) 1-6+64

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叶轮内部流动无粘性-边界层迭代及前缘粘性流动计算
lnviscid viscous Interaction Treament for Turbomachines and Laminar Flow Computation of Leading Edges.,

吴玉林
Wu Yulin

摘要(Abstract):

本文用无粘性一边界层迭代算法计算轴流叶轮内部流动。即用流函数有限差分法对S_1和S_2相对流面上的流动进行计算和迭代。在S_1和S_2流面无粘性流动计算同时,引入边界层计算,而得到准三元粘性流动解。在此解基础上,用涡一流函数法计算了叶轮S_1流面前缘部分的层流,以便准确估计前缘流态。全部程序可应用于风机、压气机,水泵和水轮机等大部分叶轮机械。形成较为完整的流动分析软件。
The inviscid-viscous interaction treatment is applied to predict guasi-three dimensional flow in the rotor of an axial compressor. Fundamentally the basic inviscid solulions for the bladeto-blade surfaces and the middle nuh-to-shroud surface are given by the matrix flow malysis, and the viscous region solution is given by integral method of boundary layers on the surfaces. Moreover, the laminar flow computation in detail aro(?)nd leading edges of the blades is improved by a vorticity-stream function method.

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作者(Author): 吴玉林
Wu Yulin

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