Research Article
Mar 1976
Computation of Tidal Flow in Well-Mixed Estuaries
Authors: Carl E. Pearson and Donald F. WinterAuthor Affiliations
Publication: Journal of the Hydraulics Division
Volume 102, Issue 3
Abstract
A new efficient procedure is developed for computing periodic flow in well-mixed estuaries of arbitrary geometry. A harmonic analysis is performed in which accurate representations of the nonlinear terms in the equations of motion are developed by successive approximation. At each iteration, the modal coefficients satisfy a system of first-order equations and boundary conditions which are combined in such a way as to promote algorithmic efficiency. The method is illustrated by applications to a model river estuary and to a deep inlet with a sill. Accuracy is demonstrated for the former case (where nonlinear effects are strong) by close agreement with results obtained from a time-stepping method. The method appears to be very efficient, and computation time may be less than 10% of that required by conventional time-stepping procedures. Analysis of multiple branches and networks of estuaries is also considered.
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Published In
Journal of the Hydraulics Division
Volume 102 • Issue 3 • March 1976
Pages: 367 - 377
Copyright
© 1976 American Society of Civil Engineers.
History
Published in print: Mar 1976
Published online: Feb 3, 2021
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Authors
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Carl E. Pearson
Prof. of Aeronautics and of Mathematics, Univ. of Washington, Seattle, Wash.
Donald F. Winter
Prof. of Oceanography, Univ. of Washington, Seattle, Wash
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