Aspect ratio and the dynamic wake of the Ahmed body

•Time-resolved PIV behind four Ahmed bodies with varying aspect ratio.•Modal decomposition reveals dynamics of the wake structures including both large-scale vortical motion and small-scale shear layer shedding.•The vertical motion in the wake depends on the aspect ratio, with the energetic shedding...

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Veröffentlicht in:	Experimental thermal and fluid science 2022-01, Vol.130, p.110457, Article 110457
Hauptverfasser:	Venning, James, McQueen, Thomas, Jacono, David Lo, Burton, David, Thompson, Mark, Sheridan, John
Format:	Artikel
Sprache:	eng
Schlagworte:	Ahmed body Aspect ratio Boundary layers Decomposition Fluid dynamics Fluid flow Particle image velocimetry Proper Orthogonal Decomposition Reynolds number Shear layers Shedding Spectral POD Strouhal number Time-resolved PIV Trailing vortices Vortices
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