• CN：11-2187/TH
  • ISSN：0577-6686
机械工程学报

›› 1997, Vol. 33 ›› Issue (1): 48-54.

• 论文 • 上一篇    下一篇

扫码分享

混流式转轮内部为有旋流动的准三维设计

罗兴琦;陈乃祥;林汝长   

  1. 西安理工大学水力机械及自动化研究所;清华大学
  • 发布日期:1997-01-01

QUASI-3D DESIGN METHOD OF ROTATIONAL FLOW FOR FRANCIS RUNNER

Luo Xingqi;Chen Naixiang;Lin Ruchang   

  1. Xi'an University of technology Qinghua University
  • Published:1997-01-01

摘要： 以速度矩及叶片厚度分布为已知条件，基于两类流面理论，建立了流面反问题计算的混流式转轮准三维设计模型。该模型可计入叶片流道内周向参数分布不均匀对叶片设计的影响。研究了叶片边界条件对叶片性能、叶片形状及设计计算的收敛性的影响。为转轮设计提出了新的思想。按本文模型设计的叶片，基速度矩分布与定值基本吻合。

关键词: 反问题, 混流式转轮, 叶片边界条件, 准三维

Abstract: Based on S1/S2 streamsurface theory, a quasi-3D design method for Francis runner is presented.The quasi-3D design model consists of an inverse calculation on S2 streamsurface and flow analysis on a number of S1 . The distribution of the swirl velocity and the blade thickness on the geometry of the runner is prescribed. The stacking position of the blade has a great influence on the blade shape and the hydraulic performance of the runner. Excellent agreements are obtained between the specified and the computed vθr distribution.

Key words: Blade boundary condition, Francis runner, Inverse problem, Quasi-three dimension

中图分类号: 

版权所有 © 2019 《机械工程学报》编辑部 | 京ICP备05055788号-30