Three-Dimensional Modeling of Tides and Wind-Waves

by Shiao-Kung Liu, Systems Research Inst, Malibu, United States,



Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract:

A third-generation coupled discrete numerical wave prediction model is dynamically linked to a three-dimensional hydrodynamic model. The effects of water level, currents, and bottom friction on the local wave climate are calculated by solving the equations for directional spectral energy in conjunction with the equations of mean flow. The paper also discusses the following aspects of three-dimensional modeling. The dynamic coupling of turbulent energy densities and the closure computation between the wave field and the mean flow field. Comparison of tidal prediction accuracy between the harmonic method and the hydrodynamic method. Effects of currents, depth, friction, coastal configuration, change of wind direction on the refraction and the spectral distribution of waves.

Subject Headings: Three-dimensional models | Numerical models | Wind waves | Wind power | Wave climates | Tides | Power spectral density

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