Numerical Simulation and Control of the Flow Around One or Two Ahmed Bodies

Autor: Charles-Henri Bruneau, Iraj Mortazavi, Emmanuel Creusé, Patrick Gilliéron, Delphine Depeyras

Publikováno v: Volume 1: Symposia, Parts A and B.

The aim of this work is to show that the drag coefficient of a bluff body is mainly linked to the circulation and the distance of the vortices in the close wake of the body. Thus an active control can be used to push away the vortices to decrease the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0c70ae0d9aba44aa0a6aca490b1c3743
https://doi.org/10.1115/fedsm2012-72384

Coupling active and passive techniques to control the flow past the square back Ahmed body

Autor: Emmanuel Creusé, Patrick Gilliéron, Delphine Depeyras, Iraj Mortazavi, Charles-Henri Bruneau

Publikováno v: Computers and Fluids
Computers and Fluids, Elsevier, 2010, 38 (10), pp.1875-1892. ⟨10.1016/j.compfluid.2010.06.019⟩
Computers and Fluids, 2010, 38 (10), pp.1875-1892. ⟨10.1016/j.compfluid.2010.06.019⟩

Several active and passive control techniques are used to reduce the drag coefficient of the square back Ahmed body. The results are carefully analyzed and compared to each other. The final goal of this paper is to show that it is possible to couple

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc2bf74f99250f9570baf84dc8e73f49
http://hdl.handle.net/20.500.12278/115680

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

Autor: Charles-Henri Bruneau, Emmanuel Creusé, Patrick Gillie´ron, Delphine Depeyras, Iraj Mortazavi

Publikováno v: ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting: Volume 1, Symposia – Parts A, B, and C.

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

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::475d3da9b0e86624e4a14772a734bc1f
https://doi.org/10.1115/fedsm-icnmm2010-30716

Active procedures to control the flow past the Ahmed body with a 25° rear window

Autor: Charles-Henri Bruneau, Iraj Mortazavi, Emmanuel Creusé, Patrick Gilliéron, Delphine Depeyras

Publikováno v: International Journal of Aerodynamics
International Journal of Aerodynamics, 2011, 1 (3/4), pp.299-317. ⟨10.1504/IJAD.2011.038847⟩
International Journal of Aerodynamics, Inderscience Publishers, 2011, 1 (3/4), pp.299-317. ⟨10.1504/IJAD.2011.038847⟩

International audience; Ahmed body with a 25 degree rear window is used to represent a simpli ed car geometry. Two and three-dimensional simulations are performed to analyse the flow behaviour around such a vehicle. Sucking and blowing jets or slots

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ce679525c10862220f3b58434ff1b0c
https://doi.org/10.1504/ijad.2011.038847

FrontMatter.

Publikováno v: Aerodynamics of Heavy Vehicles Iii; 2016, pi-ix, 9p