The aim of this work is on the one hand to show that the drag coefficient of a bluff body is mainly linked to the vortical structures in the close wake of the body. Thus an active control can be used to push away these structures to decrease the pressure forces at the back and consequently to reduce the drag coefficient. On the other hand a study of the platooning is performed. When two bodies are following each other with a short distance between them, the presence of the first body changes significantly the pressure force in front of the second one as a weak flow is present in between. The first body plays the role of a buckler and so the second body has to face completely different flow conditions. Therefore the drag of the second body is drastically reduced as shown on the results. Finally a control of the flow around the first body gives promising and surprising results.
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ASME 2013 Fluids Engineering Division Summer Meeting
July 7–11, 2013
Incline Village, Nevada, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-5555-3
PROCEEDINGS PAPER
Analysis and Active Control of the Flow Around Two Following Ahmed Bodies Available to Purchase
Charles-Henri Bruneau,
Charles-Henri Bruneau
Université Bordeaux, IMB, Talence, France
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Khodor Khadra,
Khodor Khadra
Université Bordeaux, IMB, Talence, France
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Iraj Mortazavi
Iraj Mortazavi
Université Bordeaux, IMB, Talence, France
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Charles-Henri Bruneau
Université Bordeaux, IMB, Talence, France
Khodor Khadra
Université Bordeaux, IMB, Talence, France
Iraj Mortazavi
Université Bordeaux, IMB, Talence, France
Paper No:
FEDSM2013-16588, V01BT15A013; 6 pages
Published Online:
December 13, 2013
Citation
Bruneau, C, Khadra, K, & Mortazavi, I. "Analysis and Active Control of the Flow Around Two Following Ahmed Bodies." Proceedings of the ASME 2013 Fluids Engineering Division Summer Meeting. Volume 1B, Symposia: Fluid Machinery; Fluid Power; Fluid-Structure Interaction and Flow-Induced Noise in Industrial Applications; Flow Applications in Aerospace; Flow Manipulation and Active Control: Theory, Experiments and Implementation; Fundamental Issues and Perspectives in Fluid Mechanics. Incline Village, Nevada, USA. July 7–11, 2013. V01BT15A013. ASME. https://doi.org/10.1115/FEDSM2013-16588
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