STWAVE: Steady-State Spectral Wave Model. Report 1. User's Manual for STWAVE Version 2.0.

摘要

Estimating nearshore wind-wave growth and transformation is a critical component of most coastal engineering projects, e.g., predicting bathymetric and shoreline change, estimating navigation channel shoaling and migration, designing or repairing coastal structures, assessing navigation conditions, and evaluating natural evolution of coastal inlets or beaches versus consequences of engineering actions. Nearshore wave propagation is influenced by complex bathymetry (including shoals and navigation channels); tide-, wind-, and wave-generated currents; tide- and surge-induced water-level variation; and coastal structures. Use of numerical wave models has become widespread to represent wave transformation primarily because of their increasing sophistication and economy of application relative to the large expense of field measurements or physical model studies. This report describes the application of the steady-state spectral wave model, STWAVE. The purpose of STWAVE is to provide an easy-to-apply, flexible, and robust model for nearshore wind-wave growth and propagation. Recent upgrades to the model include wave-current interaction and steepness-induced wave breaking. STWAVE has also been incorporated into the Surface-Water Modeling System (SMS), which provides a user interface and supporting software for grid generation, interpolation of current fields, generation of input spectra, and visualization of model output. This report describes procedures for using STWAVE.