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Drag mitigation by steady blowing and Coanda effect on a square back Ahmed body

Baptiste Plumejeau, Laurent Keirsbulck, Jérémy Basley, Marc Lippert, Sébastien Delprat, Wafik Abassi

The impact of converging steady blowing on the global drag past a square back Ahmed bluff body is investigated experimentally. The dynamics of the recirculation bubble are studied for a width to height aspect ratio, w/h of 1.346, with a ground clearance of g/w = 0.154, and for a nominal Reynolds…

European Journal of Mechanics - B/Fluids, 2023, 98, pp.80-91. ⟨10.1016/j.euromechflu.2022.11.006⟩. ⟨hal-04819733⟩