Normal-mode-vortex interactions.
Standing surface waves that interact with a confined, vertical, vorticity field with zero net circulation are studied both analytically and experimentally. The surface waves are generated by vertical vibration, and constant vorticity injection is achieved by a rotating disk flush mounted in the cell. Experimental results are indicative of a local wave-vortex interaction (no dislocation), and a simple theoretical model is able to explain them in quantitative detail.
Bernal
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Departamento de Física de la Universidad de Santiago de Chile, Avenida Ecuador 3493, Casilla 307 Correo 2 Santiago-Chile.
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