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