SPH MODELING OF VORTICITY GENERATION BY SHORT-CRESTED WAVE BREAKING

Proceedings of the International Conference on Coastal Engineering

Robert A Dalrymple¹  Zhangping Wei¹ 

[1] Johns Hopkins University

关键词: GPUSPH;    Short-crested waves;    Wave breaking;    Nearshore circulation;    Vertical vorticity;    Vortex;   

DOI  :  10.9753/icce.v35.waves.1

学科分类：建筑学

来源: Coastal Engineering Research Council

【 摘 要 】

This study investigates vorticity generation by short-crested wave breaking by using the mesh-free Smoothed Particle Hydrodynamics model, GPUSPH. The short-crested waves are created by generating intersecting wave trains in a numerical wave basin with a beach. The capability of GPUSPH to simulate short-crested waves is first validated by laboratory measurements. Then we examine short-crested wave breaking with two incident wave heights H = 0.2 m and 0.3 m. The larger incident wave breaks at the toe of the planar beach, while the smaller incident wave breaks above the planar beach. The breaking wave profile, current field, nearshore circulation pattern, and vertical vorticity field due to short-crested wave breaking are carefully compared between two incident waves.

【 授权许可】

CC BY