计算物理

计算物理 ›› 1988, Vol. 5 ›› Issue (3): 269-275.

• 论文 • 上一篇    下一篇

平板大攻角平面绕流问题中涡生成的数值模拟

卢建群   

  1. 北京大学数学系
  • 收稿日期:1987-08-11 出版日期:1988-09-25 发布日期:1988-09-25
  • 基金资助:
    国家自然科学基金

THE NUMERICAL SIMULATION OF VORTEX GENERATION IN FLUID FLOW AROUND A FLAT PLATE AT LARGE ATTACK ANGLES

Lu Jian-Qun   

  1. Department of Mathematics, Peking University
  • Received:1987-08-11 Online:1988-09-25 Published:1988-09-25

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摘要： 本文在涡团法的基础上结合有限元法及无限相似单元法在整个无界的流动区域上构造了Navier-Stokes方程的数值解,成功地克服了区域边界上凸角点邻域内解的奇性给数值计算带来的困难,同时克服了无穷远点给数值计算带来的困难。本文对平板大攻角平面绕流问题进行数值模拟,给出了初步的计算结果。

Abstract: A class of new scheme is constructed on the basis of vortex blob method combined with finite element method and infinite similar element method. The numerical solution of Navier-Stokes equation is obtained over the entire unbounded domain. The scheme overcomes the difficulties induced by both singularity of the solution of the equation near a convex corner point on the boundary any infinite point. It is simulated that fluid flows around a flat plate at large attack angles and initial results are presented.

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