Back to Search
Start Over
Flow under standing waves: Part 2. Scour and deposition in front of breakwaters
- Source :
-
Coastal Engineering . Mar2009, Vol. 56 Issue 3, p363-370. 8p. - Publication Year :
- 2009
-
Abstract
- Abstract: A 3-D general purpose Navier–Stokes solver was used to calculate the 2-D flow in front of the breakwater. The k–ω, SST (shear–stress transport) model was selected as the turbulence model. The morphologic model of the present code couples the flow solution with a sediment transport description, and routines for updating the computational mesh based on the mass balance of sediment. Laboratory experiments of scour also were conducted in a wave flume to obtain data for model verification. Both in the numerical simulations and in the laboratory experiment, two kinds of breakwaters were used: A vertical-wall breakwater; and a sloping-wall breakwater (Slope: 1:1.5). Numerically obtained scour-deposition profiles were compared with the experiments. The numerical results show that the equilibrium scour depth normalized by the wave height decreases with increasing water-depth-to-wave-length ratio. Although the numerical results obtained for vertical-wall breakwaters are consistent with the existing experimental data (including the present experiment), the numerical results for the sloping-wall case appear to be not very satisfactory. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 03783839
- Volume :
- 56
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Coastal Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 36565293
- Full Text :
- https://doi.org/10.1016/j.coastaleng.2008.11.002