Three-dimensional flow structure on a maneuvering wing

被引:0
作者
Turgut O. Yilmaz
Donald Rockwell
机构
[1] Lehigh University,Department of Mechanical Engineering and Mechanics, 356 Packard Laboratory, 19 Memorial Drive West
来源
Experiments in Fluids | 2010年 / 48卷
关键词
Vortex; Particle Image Velocimetry; Flow Structure; Vortical Structure; Laser Sheet;
D O I
暂无
中图分类号
学科分类号
摘要
Unsteady plunging (heaving) of a wing in the form of a flat plate can give rise to pronounced axial flow in the small-scale leading-edge vortex, during its initial stage of formation. Opposing axial flows along the vortex interact at the plane of symmetry giving rise to large-scale patterns of streamwise-oriented vorticity, which can dominate the tip vortices over part of the oscillation cycle.
引用
收藏
页码:539 / 544
页数:5
相关论文
共 47 条
[1]  
Akilli H(2002)Vortex formation from a cylinder in shallow water Phys Fluids 14 2957-2967
[2]  
Rockwell D(2005)Numerical experiments on flapping foils mimicking fish-like locomotion Phys Fluids 17 113601-1-113601-12
[3]  
Blondeaux P(2004)Molecular tagging velocimetry measurements of axial flow in a concentrated vortex core Phys Fluids 16 4185-4191
[4]  
Fornarelli F(2006)On the evolution of the wake structure produced by a low-aspect-ratio pitching panel J Fluid Mechanics 546 433-443
[5]  
Guglielmini L(2008)The wake structure and thrust performance of a rigid low-aspect-ratio pitching panel J Fluid Mechanics 603 331-365
[6]  
Triantafyllou MS(1993)Effect of boundary conditions on axial flow in a concentrated vortex core Phys Fluids A 5 280-282
[7]  
Verzicco R(2006)Wake topology and hydrodynamic performance of low-aspect-ratio flapping foils J Fluid Mechanics 566 309-343
[8]  
Bohl DG(1998)Accuracy of out-of-plane vorticity measurements derived from in-plane velocity field data Exp Fluids 25 409-430
[9]  
Koochesfahani MM(1989)Visualizing the connectivity of vortex systems for pitching wings J Fluids Eng 111 217-1205
[10]  
Buchholz JHJ(1989)Vortical patterns in the wake of an oscillating airfoil AIAA J 27 1200-1405