Abstract
The present work follows authors’ previous works, published and presented at ICCE 2016 and Coastal Dynamics 2017 conferences (Karagiannis et al. 2016, 2017) and concerns the numerical simulation of berm and dune cross-shore profile evolution due to wave overtopping and sediment overwash through an innovative repetitive approach of coupling a hydrodynamic model, synthesized on the OpenFoam platform with a morphodynamic one, whose origin code is developed in FORTRAN by the authors. The hydrodynamic model is used for the wave propagation, while the morphodynamic one gets the results of the first model and yields the new cross-shore seabed formation. The above process is repeated until the equilibrium profile is achieved.
Highlights
The present work follows authors’ previous works, published and presented at ICCE 2016 and Coastal Dynamics 2017 conferences (Karagiannis et al 2016, 2017) and concerns the numerical simulation of berm and dune cross-shore profile evolution due to wave overtopping and sediment overwash through an innovative repetitive approach of coupling a hydrodynamic model, synthesized on the OpenFoam platform with a morphodynamic one, whose origin code is developed in FORTRAN by the authors
The RANS equations are solved in conjunction with the ones of the Volume of Fluid (VOF) method for tracking the free surface
The k-omega SST turbulence model for incompressible flow, available in OpenFoam libraries, was modified in order for the density to be included in the model's equations and is used for the turbulence closure
Summary
The present work follows authors’ previous works, published and presented at ICCE 2016 and Coastal Dynamics 2017 conferences (Karagiannis et al 2016, 2017) and concerns the numerical simulation of berm and dune cross-shore profile evolution due to wave overtopping and sediment overwash through an innovative repetitive approach of coupling a hydrodynamic model, synthesized on the OpenFoam platform with a morphodynamic one, whose origin code is developed in FORTRAN by the authors. HYDRODYNAMIC MODEL ON OPENFOAM The open source toolbox OpenFoam and the additional wave generation toobox waves2Foam (Jacobsen et al 2012) is used for the simulation of the wave propagation. The RANS equations are solved in conjunction with the ones of the Volume of Fluid (VOF) method for tracking the free surface.
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