A fast second-order shallow water scheme on two-dimensional structured grids over abrupt topography

•An efficient two-dimensional finite volume scheme for the SWEs.•The scheme is well-balanced, robust and second-order acccurate.•A novel reconstruction yields superior results for shallow downhill flow over steps.•Improved speed estimates at the wet-dry front by reconstructing velocity slopes. This...

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Veröffentlicht in:	Advances in water resources 2019-05, Vol.127, p.89-108
Hauptverfasser:	Buttinger-Kreuzhuber, Andreas, Horváth, Zsolt, Noelle, Sebastian, Blöschl, Günter, Waser, Jürgen
Format:	Artikel
Sprache:	eng
Schlagworte:	Computer applications Computer simulation Dry cells Reconstruction Saint-Venant Second-order reconstruction Shallow water Slope source term Structured grids (mathematics) Topography (geology) Well-balanced scheme
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