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Persistent URL
http://purl.org/net/epubs/work/40227
Record Status
Checked
Record Id
40227
Title
Numerical modelling of tidal propagation in the Severn Estuary using a depth-adapted non-orthogonal grid
Contributors
RW Barber (CCLRC Daresbury Lab.)
,
LJ Scott
Abstract
With greater use being made of computational hydrodynamic and pollution transport models for water quality assessments of coastal and estuarine areas, increasing emphasis needs to be focused on providing an accurate treatment of the complex boundary configurations which are typical of coastal regions. This paper presents details of a depth-averaged two-dimensional numerical model which makes use of a curvilinear or boundary-fitted non-orthogonal coordinate system. The curvilinear approach provides an accurate representation of the complex shape of natural flow domains and avoids the approximate 'staircase' representation associated with models based upon regular Cartesian finite-difference grids. Special attention is given to the simulation of the exposure and re-submergence of the intertidal zones which cause the flow perimeter to change shape as the tide ebbs and flows. In addition, grid adaptation to deep water is used to improve the resolution of navigation channels. The versatility of the model is demonstrated by simulating the upper reaches of the Severn Estuary on the west coast of England.
Organisation
CCLRC
,
CSE
,
CSE-CEG
Keywords
Funding Information
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Language
English (EN)
Type
Details
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Year
Journal Article
WIT Transactions on Ecology and the Environment 43 (2000): 127-136.
https://www.witpr…-environment/43/4017
2000
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