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You are here : eLibrary : IAHR World Congress Proceedings : 34th Congress - Brisbane (2011) : THEME 7: Hydroinformatics : Finite volume modelling of one-dimensional flows on movable bed
Finite volume modelling of one-dimensional flows on movable bed
Author : A. Palumbo , L. Cozzolino, R. Della Morte and D. Pianese
Modelling the flow propagation in shallow-water bodies with movable bed is a challenging task. Due to the existence of sediment transport, bottom discontinuities and sudden bed elevation changes can be developed, for example at the end of stilling basin aprons; moreover, it is common to find structures as drop structures, check dams, sills, which promote the formation of local bed discontinuities. Here, following the theory by Dal Maso, LeFloch and Murat, a numerical scheme is presented, which is well balanced and able to capture contact discontinuities in flows characterized by movable bed: in particular, the bed geometry non-conservative products are defined in order to ensure a hydrostatic pressure distribution onto the bed step. Finally, numerical tests are presented in order to demonstrate the viability of the method.
File Size : 253,639 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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