Incorporation of Random Wave Effects into a Quasi-3D Nearshore Circulation Model (Preprint)
2002
Kaihatu, James M. | Shi, Fengyan | Kirby, James T. | Svendsen, Ib A.
Sponsored by the National Ocean Partnership Program (NOPP) project. Prepared in collaboration with the Center for Applied Coastal Research, University of Delaware, Newark, DE, Presented at the International Conference on Coastal Engineering (28th), Cardiff, Wales on 7-12 Jul 2002 and published in the proceedings, p747-759.
Show more [+] Less [-]A coupled wave-hydrodynamic modeling system, comprised of a random wave model driving a quasi-3D nearshore hydrodynamic model, is described. Random wave formulations for several inputs to the hydrodynamic model are developed. An alternate wave dissipation mechanism is incorporated into the random wave model, and two wave roller descriptions are implemented to calculate volume flux and other roller-dependent input properties. Comparison to laboratory and field data indicate that an evolving roller description, in conjunction with the 3D dispersive mixing inherent in the hydrodynamic model, yield the best results. A method to nest the model system inside larger-scale wave models is described, and an application to an area of complex bathymetry shown.
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