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罗兴琦, 陈乃祥, 林汝长. 混流式转轮内有旋流动的全三元反问题计算[J]. 力学学报, 1995, 27(S): 30-36. DOI: 10.6052/0459-1879-1995-S-1995-500
引用本文: 罗兴琦, 陈乃祥, 林汝长. 混流式转轮内有旋流动的全三元反问题计算[J]. 力学学报, 1995, 27(S): 30-36. DOI: 10.6052/0459-1879-1995-S-1995-500
混流式转轮内有旋流动的全三元反问题计算[J]. Chinese Journal of Theoretical and Applied Mechanics, 1995, 27(S): 30-36. DOI: 10.6052/0459-1879-1995-S-1995-500
Citation: 混流式转轮内有旋流动的全三元反问题计算[J]. Chinese Journal of Theoretical and Applied Mechanics, 1995, 27(S): 30-36. DOI: 10.6052/0459-1879-1995-S-1995-500

混流式转轮内有旋流动的全三元反问题计算

混流式转轮内有旋流动的全三元反问题计算

  • 摘要: 提出了一种给定V_(θr)和叶片厚度分布规律的全三元有旋流动的混流式转轮的设计模型。基于前人的研究,将全三元流动分解为由三维Euler方程作周向平均导出的平均流动方程和由Clebsch变换建立的周期性流动方程来描述,迭代求解以满足叶片边界条件实现全三元的反问题计算。算例表明,按本文模型进行设计,可以得到满足给定的负荷分布及厚度分布的转轮,提高了设计过程对叶片性能的可控性。

     

    Abstract: An inverse method of a full three dimensional rotational flow for the design ofmixed flow runner is described.The mean flow equations are derived from the 3-D Eulerequations by use of circumferential averaging method and the periodic flow equations areobtained from Clebsch formulation. The blades are represented by superposition of vorticesand sources. The distribution of V_(θr)and thickness is prescribed and the corresponding bladeShape is computed iteratively. The method is applied to the design of mediul...

     

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