High-order discontinuous Galerkin methods for coastal hydrodynamics applications

This paper applies high-order discontinuous Galerkin finite element solutions of the shallow water equations to realistic coastal hydrodynamics problems. The goal is to obtain results on par with the accuracy of current low-order models, while significantly surpassing their performance. Accomplishin...

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Veröffentlicht in:Computer methods in applied mechanics and engineering 2019-10, Vol.355, p.860-899
Hauptverfasser: Brus, S.R., Wirasaet, D., Kubatko, E.J., Westerink, J.J., Dawson, C.
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Sprache:eng
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Zusammenfassung:This paper applies high-order discontinuous Galerkin finite element solutions of the shallow water equations to realistic coastal hydrodynamics problems. The goal is to obtain results on par with the accuracy of current low-order models, while significantly surpassing their performance. Accomplishing this requires developing mesh discretizations with boundary and parameter field representations that are consistent with the high-order accuracy of the numerical methods. These developments allow coarse-mesh, high-order, solutions to provide comparable accuracy to today’s state-of-the-art high-resolution, low-order coastal models at reduced computational expense.
ISSN:0045-7825
1879-2138
DOI:10.1016/j.cma.2019.07.003