THE INTERACTION OF WAVES AND CURRENTS OVER A LONGSHORE BAR

Proceedings of the International Conference on Coastal Engineering

I.A. Svendsen¹  J. Buhr Hansen¹ 

[1] Institute of Hydrodynamics and Hydraulic Engineering, Technical University of Denmark

关键词: longshore bar;    wave/current interaction;    bar;   

DOI  :  10.9753/icce.v20.%p

学科分类：建筑学

来源: Coastal Engineering Research Council

【 摘 要 】

A two-dimensional model for waves and steady currents in the surf zone is developed. It is based on a depth integrated and time averaged version of the equations for the conservation of mass, momentum, and wave energy. A numerical solution is described based on a fourth order Runge-Kutta method. The solution yields the variation of wave height, set-up, and current in the surf zone, taking into account the mass flux in the waves. In its general form any wave theory can be used for the wave properties. Specific results are given using the description for surf zone waves suggested by Svendsen (1984a), and in this form the model is used for the wave motion with a current on a beach with a longshore bar. Results for wave height and set-up are compared with measurements by Hansen & Svendsen (1986).

【 授权许可】

Unknown