کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1721439 | 1014491 | 2009 | 8 صفحه PDF | دانلود رایگان |

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.
Journal: Coastal Engineering - Volume 56, Issue 3, March 2009, Pages 363–370