Physical and numerical modelling of trench infill

Todd, D. and Syed, A. and Whitehouse, R.J.S. and Knaapen, M. (2017) Physical and numerical modelling of trench infill. In: International Ocean and Polar Engineering Conference 2017, 2530 June 2017, San Francisco, USA.


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Physical modelling of trench infill, for trenches perpendicular to the flow direction, was undertaken in the Fast Flow Facility at HR Wallingford. Parameters including trench width, flow velocity (including reversing tidal flow), and the presence of berms along the sides of the trench were varied. Following the experiments, a numerical model was constructed with the T0 bathymetry from the physical model used as the starting numerical model bathymetry, allowing direct comparison between models. Numerical model parameters were tuned to represent the physical modelling results, with the calibrated model then used to predict infill rates for other scenarios modelled in the Fast Flow Facility.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Proceedings of the Twenty-seventh (2017) International Ocean and Polar Engineering Conference ISOPE 2017
Uncontrolled Keywords: Trench; trench infill; sediment transport; erosion; dredging
Subjects: Maritime > General
Divisions: Coastal
Depositing User: Helen Stevenson
Date Deposited: 05 Jun 2020 11:03
Last Modified: 05 Jun 2020 11:05

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