Author(s)

T. Yasuda, M. Hara, H. Mutsuda & A. Tada

Abstract

Invited Paper Internal velocity field at incipient breaking of a solitary wave over a submerged dike T. Yasuda", M. Hara\ H. Mutsuda*, A. Tada' "Department of Civil Engineering, Gifu University, Gifu 501-11, Japan ^Idemitsu Engineering Co., Ltd., ^AWen-CTto 37-^, CVw6a 2#0, Japan ^Technical Research Institute, Nishimatsu Construction Co., Ltd., Yamoto 242, Japan A fully nonlinear BIM potential wave model is used to study the internal velocity field at incipient breaking of a solitary wave over a submerged dike. The results are compared with the measured data of the water surface elevation and the accompanying water particle velocities before and at the breaking point. The numerical simulations using this model make clear that the vertical distribution of water particle velocities is closely related to the breaker type and the strong flow toward the wave crest excits plunging breaker and thrusts the overturning jet from the top of the crest. INTRODUCTION Wave bre

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