Three-dimensional numerical simulation of the hydrodynamics generated by a weak breaking tidal bore

Simon, B., Lubin, P., Glockner, S. and Chanson, H. (2011). Three-dimensional numerical simulation of the hydrodynamics generated by a weak breaking tidal bore. In: Proceedings of the 34th IAHR World Congress. 34th IAHR World Congress, 33rd Hydrology and Water Resources Symposium and 10th Conference on Hydraulics in Water Engineering, Brisbane, Australia, (1133-1140). 26 June - 1 July 2011.

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Author Simon, B.
Lubin, P.
Glockner, S.
Chanson, H.
Title of paper Three-dimensional numerical simulation of the hydrodynamics generated by a weak breaking tidal bore
Conference name 34th IAHR World Congress, 33rd Hydrology and Water Resources Symposium and 10th Conference on Hydraulics in Water Engineering
Conference location Brisbane, Australia
Conference dates 26 June - 1 July 2011
Proceedings title Proceedings of the 34th IAHR World Congress
Place of Publication Brisbane, Australia
Publisher Engineers Australia
Publication Year 2011
Sub-type Fully published paper
ISBN 9780858258686
Start page 1133
End page 1140
Total pages 8
Collection year 2012
Language eng
Abstract/Summary A tidal bore is a positive surge propagating upstream as the tidal flow turns to rising in river mouths exhibiting a converging funnelled channel forms during low freshwater conditions. While some recent laboratory experiments brought new insights to the turbulent motion generated by tidal bores, a numerical model based upon the Navier-Stokes equations is proposed to investigate the complicated features of the flow. The goal of the present work is to simulate this three-dimensional unsteady twophase tidal bore motion. Therefore, we use a Synthetic Eddy Method to generate the turbulence and a Large Eddy Simulation method to gain a further understanding of the tidal bore processes. The numerical data are compared with some detailed laboratory data and the results are discussed. We aim at describing accurately the free-surface behaviour and the turbulent flow structure. This work is the first attempt to describe this complicated flow with three-dimensional numerical simulation.
Keyword Tidal bore
Turbulence
Large eddy simulation
Three-dimensional modelling
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Conference theme - Balance and Uncertainty: Water in a Changing World

Document type: Conference Paper
Collections: School of Civil Engineering Publications
Official 2012 Collection
 
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Created: Sun, 03 Jul 2011, 02:25:25 EST by Hubert Chanson on behalf of School of Civil Engineering