中国空间科学技术

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跨音松弛法在叶栅绕流中的应用

林保真;   

  1. 北京卫星信息工程研究所,
  • 发布日期:1990-10-25

TRANSONIC RELAXATION METHOD APPLIED TO FLOWS AROUND CASCADES

Lin Baozhen (Beijing Institute of Satellite Information Engineering)   

  • Published:1990-10-25

摘要： 文章介绍跨音松弛法应用于叶栅绕流的定常与非定常流场计算。在定常流中,采用弦线法向小扰动假定;在非定常流中,采用线化非定常分量小扰动假定,从而简化了数值求解过程。由于松弛法大大地节省机时和内存,便于工程上推广应用。

关键词: 松驰法, 跨音速流, 叶栅流, 计算数学, 应用

Abstract: This paper presents an approach that transonic relaxation methodis applied to compution of the flow field around cascades on steady andunsteady flows.On steady flow small disturbance hypothesis in normality ofchord is assumed and on unsteady flow small disturbance hypothesis of line-arized unsteady component is assumed,so that the numerical solution proce-dure is simplified.Because the relaxation method saves computer time andmemory space,it is benefit of wide application in engineeing.

Key words: Subject Term Relaxation method, Transonic flow, Cascade flow, Computational mathematics, Application.