Numerical studies on evolution of secondary streamwise vortices in transitional boundary layers

被引:0
作者
陈林 [1 ]
唐登斌 [1 ]
刘超群 [2 ]
机构
[1] Department of Aerodynamics,Nanjing University of Aeronautics and Astronautics
[2] Department of Mathematics,University of Texas at Arlington
基金
中国国家自然科学基金;
关键词
secondary streamwise vortex; boundary layer; transition; direct numerical simulation;
D O I
暂无
中图分类号
O357.5 [湍流(紊流)];
学科分类号
080103 ; 080704 ;
摘要
Formation and evolution of secondary streamwise vortices in the compressible transitional boundary layers over a flat plate are studied using a direct numerical simulation method with high-order accuracy and highly effective non-reflecting characteristic boundary conditions.Generation and development processes of the secondary streamwise vortices in the complicated transitional boundary flow are clearly analyzed based on the of numerical results,and the effects on the formation of the ring-like vortex that is vital to the boundary layer transition are explored.A new mechanism forming the ring-like vortex through the mutual effect of the primary and secondary streamwise vortices is expressed.
引用
收藏
页码:449 / 458
页数:10
相关论文
共 10 条
[1]  
超声速非平行边界层的非线性稳定性研究(英文)[J]. 郭欣,唐登斌.Chinese Journal of Aeronautics. 2010(03)
[2]  
Evolution of the ring-like vortices and spike structure in transitional boundary layers[J]. OLIVEIRA Maria.Science China(Physics,Mechanics & Astronomy). 2010(03)
[3]  
PSE as applied to problems of transition in compressible boundary layers[J]. 张永明,周恒.Applied Mathematics and Mechanics(English Edition). 2008(07)
[4]  
The mechanism of breakdown in laminar-turbulent transition of a supersonic boundary layer on a flat plate-temporal mode[J]. HUANG Zhangfeng 1, CAO Wei 1,2 & ZHOU Heng 1,2 1. Department of Mechanics, Tianjin University, Tianjin 300072, China;2. Liu-Hui Center of Applied Mathematics, Nankai University and Tianjin University, Tianjin 300072, China.Science in China(Series G:Physics,Mechanics & Astronomy). 2005(05)
[5]  
NONLINEAR EVOLUTION ANALYSIS OF T-S DISTURBANCE WAVE AT FINITE AMPLITUDE IN NONPARALLEL BOUNDARY LAYERS[J]. 唐登斌 ,夏浩.Applied Mathematics and Mechanics(English Edition). 2002(06)
[6]   关于转捩边界层中流向涡的产生 [J].
李存标 .
物理学报, 2001, (01) :182-184
[7]  
Late-Stage Transitional Boundary-Layer Structures. Direct Numerical Simulation and Experiment[J] . V.I. Borodulin,V.R. Gaponenko,Y.S. Kachanov,D.G.W. Meyer,U. Rist,Q.X. Lian,C.B. Lee.Theoretical and Computational Fluid Dynamics . 2002 (5)
[8]  
DIRECT NUMERICAL SIMULATION: A Tool in Turbulence Research[J] . Parviz Moin,Krishnan Mahesh.Annual Review of Fluid Mechanics . 1998
[9]  
Coherent Motions in the Turbulent Boundary Layer[J] . S K Robinson.Annual Review of Fluid Mechanics . 1991
[10]  
The boundary layer induced by a convected two-dimensional vortex. Doligalski T L, Walker J D A. Journal of Fluid Mechanics . 1984