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Experimental and numerical study of vortex couples in two-dimensional flows

Published online by Cambridge University Press:  21 April 2006

Y. Couder
Affiliation:
Groupe de Physique des Solides, Ecole Normale Supérieure, 24, rue Lhomond, 75231 Paris Cedex 05, France
C. Basdevant
Affiliation:
Laboratoire de Météorologie Dynamique, Ecole Normale Supérieure, 24, rue Lhomond, 75231 Paris Cedex 05, France

Abstract

Two-dimensional turbulence is investigated experimentally in thin liquid films. This study shows the spontaneous formation of couples of opposite-sign vortices in von Kármán wakes. The structure of these couples, their behaviour and their role in turbulent flows is then studied using both a numerical simulation and laboratory results.

Information

Type
Research Article
Copyright
© 1986 Cambridge University Press

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