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Resonant and non-resonant waves excited by periodic vortices in airflow over water

Published online by Cambridge University Press:  20 April 2006

J. P. Giovanangeli  and
A. Memponteil
J. P. Giovanangeli
Affiliation:
Institut de Mécanique Statistique de la Turbulence, Laboratoire Associé au C.N.R.S. No. 130, 12, Avenue du Général Leclerc, 13003 Marseille, France
A. Memponteil
Affiliation:
Institut de Mécanique Statistique de la Turbulence, Laboratoire Associé au C.N.R.S. No. 130, 12, Avenue du Général Leclerc, 13003 Marseille, France
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Abstract

This paper describes an experimental study, conducted in the I.M.S.T. air–sea interaction tunnel, of waves excited on a water surface by a periodic train of vortices in the air flow above. The water surface, under some conditions, shows a rapidly developing resonant response, while in the non-resonant case waves propagate both upstream and downstream at speeds different from, but dependent upon, the vortex-convection speed.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 159 , October 1985 , pp. 69 - 84
Copyright
© 1985 Cambridge University Press

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