Numerical Modelling Of Tidal Propagation In The Severn Estuary
Using A Depth-adapted Non-orthogonal Grid
Author(s)
R.W. Barber & L.J. Scott
Abstract
Numerical modelling of tidal propagation in
the Severn Estuary using a depth-adapted
non-orthogonal grid
R.W. Barber* & L.J. Scotf
^Computational Engineering Group, Daresbury Laboratory, U.K.
* Advantage CFD, Reynard Motorsport Ltd., U.K.
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
Keywords
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