计算物理 ›› 2006, Vol. 23 ›› Issue (1): 61-65.

• 论文 • 上一篇    下一篇

湍流模式对转捩的初步研究

肖志祥, 陈海昕, 李启兵, 符松   

  1. 清华大学航天航空学院, 北京 100084
  • 收稿日期:2004-10-12 修回日期:2005-03-28 出版日期:2006-01-25 发布日期:2006-01-25
  • 作者简介:肖志祥(1974-),男,四川资阳,助研,博士,主要从事空气动力学和计算流体力学研究.
  • 基金资助:
    中国博士后科学基金;国家自然科学基金(10502030)资助项目

A Primary Study of Transitions in Turbulence Models

XIAO Zhi-xiang, CHEN Hai-xin, LI Qi-bing, FU Song   

  1. School of Aerospace, Tsinghua University, Beijing 100084, China
  • Received:2004-10-12 Revised:2005-03-28 Online:2006-01-25 Published:2006-01-25

摘要: 采用二阶时间精度的LU-SGS-τTS目的进行时间推进求解Navier-Stokes方程组,用基于Roe的六阶对称TVD格式离散对流项,并采用Baldwin-Lomax和Spalart-Allmaras模式对平板边界层、Aerospatial A-profile翼型低速大迎角及RAE-2822翼型跨声速激波/边界层干扰流动进行数值分析,自动捕捉流动的转捩过程,获取了有意义的结果.

关键词: LU-SGS-τTS方法, 对称TVD格式, 转捩判据

Abstract: The Navier-Stokes equations are solved with the second-order LU-SGS-τTS implicit time-stepping method. The sixth-order symmetric TVD scheme with fifth-order WENO interpolation based on Roe is applied to the convection terms. A boundary layer flow around a flat plate, a low speed flow around the Aerospatial A-profile at high incidence and a transonic flow with shock/boundary interaction around RAE2822 airfoil are computed by Baldwin-Lomax and Spalart-Allmaras models with the transition criterion, respectively. The results show that the approaches capture the transition automatically.

Key words: LU-SGS-τTS time-stepping method, sixth-order symmetric TVD scheme, transition criterion

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