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You are here : eLibrary : IAHR World Congress Proceedings : 34th Congress - Brisbane (2011) : THEME 7: Hydroinformatics : An improved upwind finite volume scheme for large-scale shallow flows
An improved upwind finite volume scheme for large-scale shallow flows
Author : A. M. Mohammadian, A. V. Mohammadian and B. A. Mohammadnezhad
A modified upwind scheme is presented which leads to a low level of numerical diffusion and oscillation for both gravity and Rossby waves. The method uses a high-order upwind method for calculation of the numerical flux and a fourth-order Adams method for time integration of the equations. The Coriolis term is treated analytically in two stages: before and after calculation of computational fluxes. It is shown that the proposed modifications lead to a considerable improvement of energy conservation properties of upwind finite volume schemes for large-scale shallow water flows where the Coriolis effect becomes important.
File Size : 285,465 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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