Abstract
A numerical model of undertow due to random waves is developed. The model includes three sub-models: (i) a model for multi-directional and multi-frequency random wave transformation, (ii) a surface roller evolution model, and (iii) a model for calculating the vertical distribution and the mean value of the undertow velocity. The calculation of wave trough level is performed based on a theory for the wave asymmetry. The model was successfully validated against small- and large-scale laboratory experiments. Thus, the model is expected to provide reliable input for the modeling of sediment transport and morphological change due to waves and currents.
| Original language | English |
|---|---|
| Pages (from-to) | 1209-1219 |
| Journal | Ocean Dynamics |
| Volume | 64 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 2014 |
Subject classification (UKÄ)
- Water Engineering
Free keywords
- Undertow
- Random waves
- Surface roller
- Eddy viscosity
- Wave energy
- dissipation
- Wave asymmetry