Self-organization and the 2-D morphological modelling of an obstruction in an open channel
Self-organization and the 2-D morphological modelling of an obstruction in an open channel
A self-organisation method has been applied to predict the two-dimensional morphology around an obstruction in a rectangular channel. This method overcomes the need to model the formation of dynamic equilibrium morphologies over time, which can lead to the amplification of small errors in each time step. Instead sediment is moved around in the system until a stable morphology is found, based on a number of self-organisation rules. This method will be of benefit to areas of coastal research such as the prediction of equilibrium formations behind a detached breakwater, and areas of engineering where equilibrium scour patterns are important, such as the design of bridge piers. The self-organisation method is able to predict similar morphologies to those measured in a laboratory study, and can obtain equilibrium morphologies more efficiently and with better accuracy than a comparable more traditional morphological model.
Nield, Joanna M.
173be2c5-b953-481a-abc4-c095e5e4b790
Walker, David J.
545cf0b8-54a0-4a43-8d39-ff42e1209c4e
Lambert, Martin F.
9dc677bb-34f3-446a-a7f0-0daa444a43ac
May 2004
Nield, Joanna M.
173be2c5-b953-481a-abc4-c095e5e4b790
Walker, David J.
545cf0b8-54a0-4a43-8d39-ff42e1209c4e
Lambert, Martin F.
9dc677bb-34f3-446a-a7f0-0daa444a43ac
Nield, Joanna M., Walker, David J. and Lambert, Martin F.
(2004)
Self-organization and the 2-D morphological modelling of an obstruction in an open channel.
Sixth International Conference on Hydro-Science and Engineering, Brisbane, Australia.
01 May 2004.
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Conference or Workshop Item
(Paper)
Abstract
A self-organisation method has been applied to predict the two-dimensional morphology around an obstruction in a rectangular channel. This method overcomes the need to model the formation of dynamic equilibrium morphologies over time, which can lead to the amplification of small errors in each time step. Instead sediment is moved around in the system until a stable morphology is found, based on a number of self-organisation rules. This method will be of benefit to areas of coastal research such as the prediction of equilibrium formations behind a detached breakwater, and areas of engineering where equilibrium scour patterns are important, such as the design of bridge piers. The self-organisation method is able to predict similar morphologies to those measured in a laboratory study, and can obtain equilibrium morphologies more efficiently and with better accuracy than a comparable more traditional morphological model.
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Published date: May 2004
Venue - Dates:
Sixth International Conference on Hydro-Science and Engineering, Brisbane, Australia, 2004-05-01 - 2004-05-01
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Local EPrints ID: 55354
URI: http://eprints.soton.ac.uk/id/eprint/55354
PURE UUID: 5893190b-211c-49b1-beb1-4f21d51279c1
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Date deposited: 18 Aug 2008
Last modified: 16 Mar 2024 03:56
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Author:
David J. Walker
Author:
Martin F. Lambert
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