Abstract
When a wave-breaking jet plunges onto the forward wave trough, three-dimensional organized free-surface flows with longitudinal counter-rotating vortices are organized at the plunging location. The finger jets are induced through free-surface entrainment by the vortices beneath the surface. The surface tension destabilize the jets to form multiple droplets. Fundamental features of the series of free-surface deformation during the wave breaking process are studied on the basis of numerical computations and laboratory experiments.
