Effect on drag of the flow orientation at the base separation of a simplified blunt road vehicle
1
PSA Peugeot Citroën, Centre Technique de Velizy, Vélizy-Villacoublay Cedex, France
|
2
Unité de Mécanique, Ecole Nationale Supérieure de Techniques Avancées, ParisTech, Palaiseau Cedex, France
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Publication type: Journal Article
Publication date: 2013-05-04
scimago Q1
wos Q2
SJR: 0.754
CiteScore: 5.0
Impact factor: 2.5
ISSN: 07234864, 14321114
General Physics and Astronomy
Mechanics of Materials
Computational Mechanics
Fluid Flow and Transfer Processes
Abstract
The separated flow past the square-back model used in the experiments of Ahmed et al. (1984) is controlled using flaps at the end of the top and bottom faces. A parametric study of the flow regarding the slant angle of the flaps is performed from pressure and force measurements as well as particle image velocimetry. When the bottom flap orientation is fixed, variations in the top slant angle indicate a quadratic dependence of drag versus lift. This relationship presents self-similarities when modifying the bottom flap angle. It is furthermore observed that the lift is an affine function of both slant angles and the drag is a second-order polynomial containing a coupling term between the two angles. The evolution of the drag, depending on both angles, is discussed. The contribution of the wake size, lift-induced drag as well as the local drag induced by the inclination of the flaps is interpreted.
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Total citations:
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Citations from 2024:
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(11.76%)
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Grandemange M. et al. Effect on drag of the flow orientation at the base separation of a simplified blunt road vehicle // Experiments in Fluids. 2013. Vol. 54. No. 5. 1529
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Grandemange M., MARY A., Gohlke M., Cadot O. Effect on drag of the flow orientation at the base separation of a simplified blunt road vehicle // Experiments in Fluids. 2013. Vol. 54. No. 5. 1529
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TY - JOUR
DO - 10.1007/s00348-013-1529-z
UR - https://doi.org/10.1007/s00348-013-1529-z
TI - Effect on drag of the flow orientation at the base separation of a simplified blunt road vehicle
T2 - Experiments in Fluids
AU - Grandemange, M
AU - MARY, A.
AU - Gohlke, M.
AU - Cadot, O.
PY - 2013
DA - 2013/05/04
PB - Springer Nature
IS - 5
VL - 54
SN - 0723-4864
SN - 1432-1114
ER -
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BibTex (up to 50 authors)
Copy
@article{2013_Grandemange,
author = {M Grandemange and A. MARY and M. Gohlke and O. Cadot},
title = {Effect on drag of the flow orientation at the base separation of a simplified blunt road vehicle},
journal = {Experiments in Fluids},
year = {2013},
volume = {54},
publisher = {Springer Nature},
month = {may},
url = {https://doi.org/10.1007/s00348-013-1529-z},
number = {5},
pages = {1529},
doi = {10.1007/s00348-013-1529-z}
}