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Experimental Investigation of Vortex Flows Behind a Segmented Blunt Trailing Edge

DSpace at IIT Bombay

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Field Value
 
Title Experimental Investigation of Vortex Flows Behind a Segmented Blunt Trailing Edge
 
Creator DESHPANDE, PJ
SHARMA, SD
 
Subject CIRCULAR-CYLINDER
BLUFF-BODY
BASE DRAG
VORTICAL STRUCTURES
WAKE
REDUCTION
TRANSITION
BLEED
MODEL
 
Description 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.
 
Publisher AMER INST AERONAUTICS ASTRONAUTICS
 
Date 2014-10-16T14:39:18Z
2014-10-16T14:39:18Z
2013
 
Type Article
 
Identifier AIAA JOURNAL, 51(11)2529-2539
0001-1452
1533-385X
http://dx.doi.org/10.2514/1.J051838
http://dspace.library.iitb.ac.in/jspui/handle/100/15806
 
Language en