Print Email Facebook Twitter Validation of RANS modelling for wave interactions with sea dikes on shallow foreshores using a large-scale experimental dataset Title Validation of RANS modelling for wave interactions with sea dikes on shallow foreshores using a large-scale experimental dataset Author Gruwez, Vincent (Universiteit Gent) Altomare, Corrado (Universiteit Gent; Universitat Politecnica de Catalunya) Suzuki, T. (TU Delft Environmental Fluid Mechanics; Flanders Hydraulics Research) Streicher, Maximilian (Universiteit Gent) Cappietti, Lorenzo (University of Florence) Kortenhaus, Andreas (Universiteit Gent) Troch, Peter (Universiteit Gent) Date 2020 Abstract In this paper, a Reynolds-averaged Navier-Stokes (RANS) equations solver, interFoam of OpenFOAM®, is validated for wave interactions with a dike, including a promenade and vertical wall, on a shallow foreshore. Such a coastal defence system is comprised of both an impermeable dike and a beach in front of it, forming the shallow foreshore depth at the dike toe. This case necessitates the simulation of several processes simultaneously: wave propagation, wave breaking over the beach slope, and wave interactions with the sea dike, consisting of wave overtopping, bore interactions on the promenade, and bore impacts on the dike-mounted vertical wall at the end of the promenade (storm wall or building). The validation is done using rare large-scale experimental data. Model performance and pattern statistics are employed to quantify the ability of the numerical model to reproduce the experimental data. In the evaluation method, a repeated test is used to estimate the experimental uncertainty. The solver interFoam is shown to generally have a very good model performance rating. A detailed analysis of the complex processes preceding the impacts on the vertical wall proves that a correct reproduction of the horizontal impact force and pressures is highly dependent on the accuracy of reproducing the bore interactions. Subject Dike-mounted vertical wallOpenFOAMShallow foreshoreValidationWave impact loadsWave modelling To reference this document use: http://resolver.tudelft.nl/uuid:19845d50-dd02-412b-9385-8a2b768b5604 DOI https://doi.org/10.3390/JMSE8090650 ISSN 2077-1312 Source Journal of Marine Science and Engineering, 8 (9), 1-30 Part of collection Institutional Repository Document type journal article Rights © 2020 Vincent Gruwez, Corrado Altomare, T. Suzuki, Maximilian Streicher, Lorenzo Cappietti, Andreas Kortenhaus, Peter Troch Files PDF jmse_08_00650_v2.pdf 10.67 MB Close viewer /islandora/object/uuid:19845d50-dd02-412b-9385-8a2b768b5604/datastream/OBJ/view