CSDMS 2014 annual meeting poster Alberto Canestrelli
An immersed boundary method in Delft3D
Rudy Slingerland, Penn State University University Park Pennsylvania, United States. rxs15@psu.edu
Abstract:
In this work an approach is proposed for solving the three dimensional shallow water equations with embedded boundaries that are not aligned with the underlying Cartesian grid. A hybrid cut-cell/ghost-cell method is proposed: ghost cells are used for the momentum equations in order to prescribe the correct boundary condition at the immersed boundary, while cut-cells are used in the continuity equation in order to conserve mass. The resulting scheme is robust and does not suffer any time step limitation for small cut cells. Comparisons toward analytical solutions and reference numerical solutions on curvilinear grids confirm the quality of the method.
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