航空学报 > 1993, Vol. 14 Issue (5): 335-336

Reynolds方程封闭性

李存标, 连淇祥   

  1. 北京航空航天大学流体力学研究所,北京 100083
  • 收稿日期:1993-03-22 修回日期:1900-01-01 出版日期:1993-05-25 发布日期:1993-05-25

THE CLOSED CHARACTERISTICS OF THE REYNOLDS EQUATION

Li Cun-biao, Lian Qi-xiang   

  1. institute of Fluid Mechanics, Beijing University of Aeronautics and Astronautics, Beijing, 100083
  • Received:1993-03-22 Revised:1900-01-01 Online:1993-05-25 Published:1993-05-25

摘要: <正> Reynolds推出了Reynolds方程以来,人们花费大量精力研究方程的封闭性。Taylor首先引入相关概念并提出各态历经假说。Prandtl提出著名的混合长度理论:Karman给出混合长度的另外形式。周培源(Chou P Y)对各向同性湍流做了大量研究工作,获得了满意的结果。最近高歌用侧偏系综平均取代Reynolds平均,得到

Abstract: A equation of the pulsation velocity components was obtained from N-S equation and Reynolds equation directly, The equations are closed and discussed briefly.