A Hybrid Model for Nearshore Nonlinear Wave Evolution
Abstract
Field and laboratory data show the presence of equilibrium in the high frequencies of surf zone frequency spectra. In this region, dissipation of high frequency energy equilibrates with nonlinear interactions that transfer energy primarily from low frequencies to high frequencies. The nonlinear interactions that describe near shore wave evolution increase model complexity, which results in an increase in computational expense. To reduce the computational burden of a nonlinear wave model, it is combined with a parameterization for surf zone wave spectra, and different implementations of the parameterization are tested and the results show that the predicted spectra and H(rms) compare well with data and the full model nonlinear parameters skewness and asymmetry are not accurately predicted. Several ideas for future improvements are suggested.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 13, 2007
- Accession Number
- ADA470246
Entities
People
- James Kaihatu
- Jayaram Veeramony
- Kacey L. Edwards
Organizations
- United States Naval Research Laboratory