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You are here : eLibrary : IAHR World Congress Proceedings : 34th Congress - Brisbane (2011) : THEME 7: Hydroinformatics : Simplified discontinuous galerkin schemes for shallow water simulations
Simplified discontinuous galerkin schemes for shallow water simulations
Author : Quentin Araud, Pascal Finaud-Guyot, Robert Mosť, Josť Vazquez , Sandra Isel and Vincent Guinot
Discontinuous Galerkin schemes have shown promising results to solve the 2D-shallow water equations in urban areas during flooding events using a finite element scheme. In this paper, the classical Runge Kutta time discretisation is replaced by the Eigen Vector linear Reconstruction (EVR) approach that allow to achieve the second order time discretisation in one computational step. The proposed method is compared to a classical RKDG approach on dam-break and experimental test cases. The EVR-DG approach appears to be as accurate as RKDG and 1.5 times faster than the Runge Kutta scheme.
File Size : 363,836 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 34th Congress - Brisbane (2011)
Article : THEME 7: Hydroinformatics
Date Published : 01/07/2011
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