A coupling between a 2D shallow water solver and a 3D Reynolds-Averaged Navier-Stokes solver is presented. The coupling is implemented via a bi-directional exchange of flow variables at the boundaries, thus allowing for the computation of unsteady phenomena like flood waves. Several test cases are conducted, where coupled simulations are compared to both, shallow water simulations and Reynolds-Averaged Navier-Stokes simulations. In these test cases it is demonstrated that the method is stable and accurate.
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A coupling between a 2D shallow water solver and a 3D Reynolds-Averaged Navier-Stokes solver is presented. The coupling is implemented via a bi-directional exchange of flow variables at the boundaries, thus allowing for the computation of unsteady phenomena like flood waves. Several test cases are conducted, where coupled simulations are compared to both, shallow water simulations and Reynolds-Averaged Navier-Stokes simulations. In these test cases it is demonstrated that the method is stable an...
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