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A numerical model for the simulation of two‐dimensional convective‐dispersion in shallow estuaries
Author(s) -
Narayanan M.,
Shankar N. Jothi
Publication year - 1976
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1620100414
Subject(s) - bay , dispersion (optics) , estuary , mechanics , convection , finite difference , sensitivity (control systems) , geology , environmental science , mathematics , oceanography , physics , engineering , mathematical analysis , optics , electronic engineering
Abstract A numerical model for describing two‐dimensional convective‐dispersive processes in tidally influenced shallow bays in given. The model uses a multi‐stage implicit technique with finite difference formulation, for solving the basic mass balance equation for a conservative constituent. The basic inputs to this model consist of instantaneous tidal velocities and depths obtained from an operational tidal hydrodynamic model. The sensitivity of the output concentrations to the variation of dispersion coefficients is investigated. Application of the model to a practical situation is demonstrated by considering Galveston Bay. Texas, U.S.A. The transport model is operated to generate results which are compared with measurements from dye release studies made in a physical model of Galveston Bay.