The near wake of a hitherto untried segmented blunt trailing-edge model has been investigated experimentally using a laser Doppler velocimeter. On the plain base of the model, trapezoidal prismatic blocks with symmetry about a transverse plane are attached along the model span at regular intervals, and they are arranged in two different fashions leaving a gap between them of a trapezoidal shape in one case and parallelogrammatic in another case. The spanwise discontinuity of this kind in the trailing edge not only imposes dislocation of spanwise vortices but also generates large-scale streamwise vortices, which effectively stabilize the periodic wake. The study ascertains that these novel “flush-mounted vortex generators” can be used when the application demands the streamwise vortices to penetrate in the wake of a parallel-sided bluff body.
Experimental Investigation of Vortex Flows Behind a Segmented Blunt Trailing Edge
AIAA Journal ; 51 , 11 ; 2529-2539
2013-09-12
11 pages
Article (Journal)
Electronic Resource
English
FLUID DYNAMICS - Experimental Investigation of Vortex Flows Behind a Segmented Blunt Trailing Edge
Online Contents | 2013
|Unsteady flow behind a blunt trailing edge aerofoil
AIAA | 1995
|Experimental Investigation of Reverse Flow over Sharp and Blunt Trailing Edge Airfoils
British Library Conference Proceedings | 2013
|Analysis of Blunt Trailing Edge Airfoils
AIAA | 2003
|