Lagrangian Transport Model for Estuaries
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 110, Issue 3
Abstract
A two‐dimensional (in a vertical plane), nonlinear model is used to analyze tide‐induced mean currents in shallow estuaries forced with tides of significant amplitude. The model is first verified by comparing its results with known analytical solutions of Lagrangian currents in a uniform and homogeneous estuary. The Lagrangian velocity fields are derived from the computed mean Eulerian and Stokes velocities in the estuary. A set of model experiments is performed to investigate the influences of tidal forcing, density gradients, and topographic variations on the mean circulation in tidal channels. It is shown that the tide‐induced transport opposes density‐induced transport in tidal rivers. Model sensitivity analysis indicates that for mean estuarine circulation studies, it is essential to include the coupled effects of density and tides active in the domain of interest.
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Information & Authors
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Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 110 • Issue 3 • August 1984
Pages: 321 - 333
Copyright
Copyright © 1984 ASCE.
History
Published online: Aug 1, 1984
Published in print: Aug 1984
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