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Experimental characterization of the 3D dynamics of a laminar shallow vortex dipole

Lacaze, Laurent and Brancher, Pierre and Eiff, Olivier and Labat, Ludovic Experimental characterization of the 3D dynamics of a laminar shallow vortex dipole. (2010) Experiments in Fluids, 48 (2). 225-231. ISSN 0723-4864

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Official URL: http://dx.doi.org/10.1007/s00348-009-0732-4

Abstract

Experimental results on the dynamics of a vortex dipole evolving in a shallow fluid layer are presented. In particular, the generation of a spanwise vortex at the front of the dipole is observed in agreement with previous experiments at larger Reynolds numbers. The results show that this secondary vortex is of comparable strength to the dipole. The present physical analysis suggests that the origin of this structure involves the stretching induced by the dipole of the boundary-layer vorticity generated by the dipole's advection over the no-slip bottom.

Item Type:Article
Additional Information:Thanks to Springer Verlag editor. The original PDF of the article can be found at : https://link.springer.com/article/10.1007%2Fs00348-009-0732-4
HAL Id:hal-01727774
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
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Deposited On:09 Mar 2018 14:28

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