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THMT-15. Proceedings of the Eighth International Symposium On Turbulence Heat and Mass Transfer
September, 15-18, 2015, Sarajevo, Bosnia and Herzegovina

DOI: 10.1615/ICHMT.2015.THMT-15


ISBN Print: 978-1-56700-427-4

ISBN CD: 978-1-56700-428-8

Experimental and numerical study of flow structures between two Ahmed bodies with various inter-body distances

pages 835-838
DOI: 10.1615/ICHMT.2015.THMT-15.1890
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RESUMO

Numerical and experimental study of mutual interaction of flow structures in a two-vehicle platoon is presented in this paper. The investigations were conducted for the vehicles distances in the range of d/L = 0−1.3 at Re = 130, 000. The experimental observations showed a sudden unexpected drag increase of the follower at specific close distances of the bodies in which, the velocity fluctuations of the shear layer separated from the leader suddenly increases. Accurate PANS numerical simulations were performed at three alternative close distances of the bodise which increased understanding of the flow structures.

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