Active control for cavity instabilities and bluff body drag reduction

2017 ◽  
Author(s):  
A.S. Morgans
Keyword(s):  
Drag Reduction ◽  
Active Control ◽  
Bluff Body ◽  
Body Drag

Experimental Study on Bluff Body Drag Reduction with Fluidic Oscillators

2014 ◽  
Author(s):  
Rene Woszidlo ◽  
Timo Stumper ◽  
C. Nayeri ◽  
Christian O. Paschereit
Keyword(s):  
Experimental Study ◽  
Drag Reduction ◽  
Bluff Body ◽  
Body Drag

scholarly journals Extremum seeking to control the amplitude and frequency of a pulsed jet for bluff body drag reduction

2016 ◽  
Vol 57 (10) ◽  
Author(s):  
Rowan D. Brackston ◽  
Andrew Wynn ◽  
Jonathan F. Morrison
Keyword(s):  
Drag Reduction ◽  
Bluff Body ◽  
Extremum Seeking ◽  
Pulsed Jet ◽  
Body Drag

Axisymmetric bluff-body drag reduction using circumferential grooves

1983 ◽  
Author(s):  
F. HOWARD ◽  
W. GOODMAN ◽  
M. WALSH
Keyword(s):  
Drag Reduction ◽  
Bluff Body ◽  
Body Drag

Axisymmetric bluff-body drag reduction through geometrical modification

1985 ◽  
Vol 22 (6) ◽  
pp. 516-522 ◽  
Author(s):  
Floyd G. Howard ◽  
Wesley L. Goodman
Keyword(s):  
Drag Reduction ◽  
Bluff Body ◽  
Body Drag

Mechanics of bluff body drag reduction during transient near-wake reversals

2020 ◽  
Vol 894 ◽  
Author(s):  
Y. Haffner ◽  
J. Borée ◽  
A. Spohn ◽  
T. Castelain
Keyword(s):  
Drag Reduction ◽  
Bluff Body ◽  
Near Wake ◽  
Body Drag ◽  
Image Position

Longitudinal grooves for bluff body drag reduction

AIAA Journal ◽  
1981 ◽  
Vol 19 (4) ◽  
pp. 535-537 ◽  
Author(s):  
B. Quass ◽  
F. Howard ◽  
L. Weinstein ◽  
D. Bushnell
Keyword(s):  
Drag Reduction ◽  
Bluff Body ◽  
Body Drag

Bluff-body drag reduction using a deflector

2010 ◽  
Vol 50 (2) ◽  
pp. 385-395 ◽  
Author(s):  
Grégoire Fourrié ◽  
Laurent Keirsbulck ◽  
Larbi Labraga ◽  
Patrick Gilliéron
Keyword(s):  
Drag Reduction ◽  
Bluff Body ◽  
Body Drag

scholarly journals Investigation of Passive Porosity as a Means for Bluff-Body Drag Reduction

2018 ◽  
Vol 11 (1) ◽  
pp. 65-73
Author(s):  
Alvin Gatto ◽  
Holger Babinsky
Keyword(s):  
Drag Reduction ◽  
Bluff Body ◽  
Body Drag

Analysis of the Drag Reduction Using Vortex Kinematics Behind a Bluff Body

2010 ◽  
Author(s):  
Charles-Henri Bruneau ◽  
Emmanuel Creuse´ ◽  
Delphine Depeyras ◽  
Patrick Gillie´ron ◽  
Iraj Mortazavi
Keyword(s):  
Drag Reduction ◽  
Drag Coefficient ◽  
Active Control ◽  
Bluff Body ◽  
Strong Relationship ◽  
Back Wall ◽  
Control Processes ◽  
Drag Forces ◽  
Vortex Kinematics

The aim of this work is to analyse one of the mechanisms that contributes to the drag forces, namely the distance of the vortices to the back wall of a bluff body. The study shows the strong relationship between this distance and the pressure forces at the back. Indeed, the active control processes modify the trajectory of the vortices to accelerate their removal from the wall and consequently reduce the drag coefficient.

Bluff Body Drag Reduction Using Passive Flow Control of Jet Boat Tail

2015 ◽  
Vol 8 (2) ◽  
pp. 713-721 ◽  
Author(s):  
Trevor Hirst ◽  
Chuanpeng Li ◽  
Yunchao Yang ◽  
Eric Brands ◽  
Gecheng Zha
Keyword(s):  
Drag Reduction ◽  
Flow Control ◽  
Bluff Body ◽  
Passive Flow Control ◽  
Passive Flow ◽  
Body Drag
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