Kesserwani, G., Shamkhalchian, A. and Zadeh, M.J. (2014) Fully coupled discontinuous galerkin modeling of dam-break flows over movable bed with sediment transport. Journal of Hydraulic Engineering, 140 (4). 06014006. ISSN 0733-9429
Abstract
A one-dimensional (1D) discontinuous Galerkin morphodynamic model has been devised with application to simulate of dam-break flows over erodible beds with suspended sediment transport. The morphodynamic equations adopt the shallow-water equations (SWE) considering the interaction of sediment transport and bed changes on the flow. A local second-order Runge-Kutta discontinuous Galerkin (RKDG2) model has been reformulated to numerically solve the morphodynamic equations in a fully coupled manner and with a noncapacity sediment model. The model’s implementation is thoroughly detailed with focus on the discretization of the complex source terms, the treatment of wetting and drying, and other stabilizing issues pertaining to high-solution gradients and the transient character of the topography. The model has been favorably applied to replicate experimental dam-break flow over erodible sediment beds.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2014 American Society of Civil Engineers. This is an author produced version of a paper subsequently published in Journal of Hydraulic Engineering. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Dam failures; Erosion; Sediment transport; Dam-break flows; Discontinuous Galerkin; Erodible beds; Sediment transport; Complex source terms; Wetting and drying; Model testing |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Civil and Structural Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 06 Oct 2014 09:33 |
Last Modified: | 07 Oct 2014 06:31 |
Published Version: | http://dx.doi.org/10.1061/(ASCE)HY.1943-7900.00008... |
Status: | Published |
Publisher: | American Society of Civil Engineers |
Refereed: | Yes |
Identification Number: | 10.1061/(ASCE)HY.1943-7900.0000860 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:80815 |