WAVE TRANSFORMATION THROUGH WAVE-VORTEX INTERACTIONS

Abstract

　This study presents experimental findings of wave-vortex interactions observed in wave propagation over vertical vortices. A variery of wave responses had been observed; incident waves trapped within vortices or docomposed into multiple short-crest waves above vortices as well as transition to diffracted waves behind the vortices. Wave amplification in the vortical filed may be explained with wave-current interactions, while pressure depression in the vortices may need to consider to indentify the interactions.