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Towards an efficient and highly accurate coupled numerical modelling approach for wave interactions with a dike on a very shallow foreshore
Vandebeek, I.; Gruwez, V.; Altomare, C.; Vanneste, D.; De Roo, S.; Toorman, E.; Troch, P. (2018). Towards an efficient and highly accurate coupled numerical modelling approach for wave interactions with a dike on a very shallow foreshore, in: Proceedings of the 7th International Conference on the Application of Physical Modelling in Coastal and Port Engineering and Science (Coastlab18), Santander, Spain, May 22-26, 2018. pp. [1-10]
In: (2018). Proceedings of the 7th International Conference on the Application of Physical Modelling in Coastal and Port Engineering and Science (Coastlab18), Santander, Spain, May 22-26, 2018. [S.n.]: [s.l.]. , meer
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| Beschikbaar in | Auteurs |
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Documenttype: Congresbijdrage
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| Author keywords |
Numerical modelling; Wave-induced loading; Beach morphodynamics; Shallow foreshores |
| Abstract |
An accurate prediction of wave overtopping over the crest of coastal structures and wave-induced loading is essential to guarantee coastal safety. Due to the presence of a very shallow foreshore at the Belgian coast, this is not straightforward. Within the CREST project, a numerical model is being developed to accurately predict these wave interactions with structures on a very shallow foreshore. Sediment transport in front of the structure as well as the wave structure interactions are simulated with the open-source CFD software OpenFOAM. Wave propagation over the beach until the wave breaking point is modelled with SWASH, a model based on the non-linear shallow water equations in order to limit the computational cost. A one-way coupling methodology between these two models is proposed. The capability of OpenFOAM as stand-alone model to accurately predict wave loading forces on buildings for a case with a very shallow foreshore is demonstrated by comparing the numerical results to experimental data. The ability of OpenFOAM to simulate scour processes is validated by experimental data of a submerged jet flow over an apron. Furthermore, a first test case with the coupled OpenFOAM-SWASH model presenting the propagation of regular waves is described. |
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