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Título

Analysis of a second-order upwind method for the simulation of solute transport in 2D shallow water flow

AutorMurillo, J.; García-Navarro, Pilar; Burguete Tolosa, Javier
Palabras claveConvection
Conservation
Coupled system
Diffusion
Finite volumes
Source terms
Two-dimensional model
Computational fluid dynamics
Diffusion
Finite volume method
Solute transport
First-order upwind technique
Shallow water flow
Flow of water
Fecha de publicaciónfeb-2008
EditorJohn Wiley & Sons
CitaciónInternational Journal for Numerical Methods in Fluids 56 (6): 661-686 (2008)
ResumenA two-dimensional model for the simulation of solute transport by convection and diffusion into shallow water flow over variable bottom is presented. It is based on a finite volume method over triangular unstructured grids. A first-order upwind technique, a second order in space and time and an extended first-order method are applied to solve the non-diffusive terms in both the flow and solute equations and a centred implicit discretization is applied to the diffusion terms. The stability constraints are studied and the form to avoid oscillatory results in the solute concentration in the presence of complex flow situations is detailed. Some comparisons are carried out in order to show the performance in terms of accuracy of the different options.
Versión del editorhttp://dx.doi.org/10.1002/fld.1546
URIhttp://hdl.handle.net/10261/97760
DOI10.1002/fld.1546
Identificadoresdoi: 10.1002/fld.1546
issn: 0271-2091
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