Journal article
Flow under standing waves Part 2. Scour and deposition in front of breakwaters : Part 2. Scour and deposition in front of breakwaters
A 3-D general purpose Navier-Stokes solver was used to calculate the 2-D flow in front of the breakwater. The k-omega, 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.
Language: | English |
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Year: | 2009 |
Pages: | 363-370 |
ISSN: | 18727379 and 03783839 |
Types: | Journal article |
DOI: | 10.1016/j.coastaleng.2008.11.002 |
ORCIDs: | Sumer, B. Mutlu |