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Hydrodynamic behaviour of a two-stage channel with horizontal and inclined floodplains: a numerical investigation

Rameshwaran, P.; Shiono, K.; Sun, X.; Chandler, J. H.; Sellin, R. H. J.. 2008 Hydrodynamic behaviour of a two-stage channel with horizontal and inclined floodplains: a numerical investigation. In: Proceedings of the 8th International Conference on Hydro-Science and Engineering (ICHE-2008), Nagoya University, Nagoya, Japan, 9-12 September 2008.

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Abstract/Summary

This paper presents the hydrodynamic behaviour of the two-stage River Blackwater model with horizontal and inclined floodplains using two-dimensional (2D) and threedimensional (3D) numerical models. The 2D model solves the shallow water depth-averaged continuity and Navier-Stokes equations with the depth-averaged form of the k −ε turbulence model for free surface flow. The 3D model solves the three-dimensional Reynoldsaveraged continuity and Navier-Stokes equations with the renormalization group (RNG) k −ε turbulence model for steady-state flow. The performance of the models is assessed by comparing predicted results with the experimental data obtained from a 1:5 scale physical model of the River Blackwater, located at the UK Flood Channel Facility. The predicted model results are used to investigate the flow processes along the channel in both the horizontal and inclined floodplain cases.

Item Type: Publication - Conference Item (Paper)
Programmes: CEH Programmes pre-2009 publications > Water > WA02 Quantifying processes that link water quality and quantity, biota and physical environment > WA02.2 Hydrochemical and sediment processes
CEH Sections: Acreman
Additional Information. Not used in RCUK Gateway to Research.: Advances in Hydro-Science and Engineering, Volume VIII
Additional Keywords: floodplain, numerical model, overbank flow, River Blackwater, two stage channel
NORA Subject Terms: Ecology and Environment
Earth Sciences
Electronics, Engineering and Technology
Date made live: 25 Sep 2008 12:45
URI: http://nora.nerc.ac.uk/id/eprint/4291

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