Boussinesq modeling of wave run-up and overtopping

Proceedings of the Seventh International Conference on Hydroscience and Engineering, Philadelphia, PA, September 2006. http://hdl.handle.net/1860/732In this study, wave overtopping of coastal structures in the surf zone is investigated numerically. Simulations are performed with the use of a Boussinesq-type model. The model incorporates high-order equations with improved dispersion characteristics. These equations are capable of modeling dispersive wave propagation even in deep water conditions. Wave breaking and bottom friction are also included in the model while a linear extrapolation technique is used to describe wave run-up on steep slopes. Model results are evaluated using experimental measurements conducted in wave flumes. Tests involving wave run-up on a plane beach and wave overtopping of permeable and impermeable breakwaters are considered. The analysis demonstrates that the model results had good agreements with the experiments except for some deficiencies in cases of complex flow structures