航空学报 > 1996, Vol. 17 Issue (6): 26-33

计算三维粘性/无粘性干扰流动的准联立分区算法

金生1, 李椿萱2   

  1. 1. 大连理工大学, 大连, 116024;2. 北京航空航天大学流体力学研究所, 北京, 100083
  • 收稿日期:1995-03-17 修回日期:1995-10-20 出版日期:1996-12-25 发布日期:1996-12-25

A DOMAIN DECOMPOSED QUASI SIMULTANEOUS METHOD FOR COMPUTING THREE DIMENSIONAL VISCOUS/INVISCID INTERACTIVE FLOWS

Jin Sheng1, Li Chunxuan2   

  1. 1. Dalian University of Technology,Dalian,116024;2. Institute of Fluid Mechanics, Beijing University of Aeronautics and Astronautics, Beijing, 100083
  • Received:1995-03-17 Revised:1995-10-20 Online:1996-12-25 Published:1996-12-25

摘要: 应用摄动理论导出了粘性/无粘性流动的匹配条件,与边界层方程联立形成能计及粘性/无粘性干扰效应的模型方程。同时引用等效吮吸理论对该模型方程与全位势方程进行交替迭代求解,建立了计算高雷诺数流动的一种快速收敛的粘性/无粘性分区算法。计算结果表明该算法适用于包括小尺度分离的流动;与传统的半逆解法相比,计算效率明显提高

关键词: 粘性流, 无粘流, 干扰, 匹配, 高雷诺数

Abstract: A matching relation on viscous/inviscid interactive flows is deduced,based on the perturbation theory,and coupled with boundary layer equations to form an interactive mode for the equations.A domain decomposition technique can then be constructed,utilizing the transpiration theory,by imposing an iterative proceduce through alternatively solving the interactive mode and the full potential equation.The method has proved to be effective for computing high Reynolds numbers flows with subsonic and transonic free stream Mach numbers.The numerical results presented in this paper demonstrate significant improvement of computational efficiency in comparison with the traditional semi inverse procedure.

Key words: viscous flow, inviscid flow, interference, matching, high Reynolds number

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