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3-D Orthogonal Curvilinear Circulation Modelling

by Alan F. Blumberg, Dynalysis of Princeton, Princeton, NJ, USA,
H. James Herring, Dynalysis of Princeton, Princeton, NJ, USA,
Lakshmi H. Kantha, Dynalysis of Princeton, Princeton, NJ, USA,
George L. Mellor, Dynalysis of Princeton, Princeton, NJ, USA,



Document Type: Proceeding Paper

Part of: Hydraulics and Hydrology in the Small Computer Age

Abstract:

A three-dimensional circulation model has been developed using an orthogonal curvilinear coordinate system. The model as constructed is capable of simulations on a variety of time and space scales of currents and sea surface elevations in estuaries and in coastal waters within a few hundred kilometers of the coast as well as for entire ocean basins. The governing equations, cast into curvilinear coordinates, are solved using standard finite difference techniques which accommodate irregularly shaped, but orthogonal, computational grids. A simulation of California Current System is presented. The paper concludes with a discussion of a rather efficient grid encompassing the Mid-Atlantic Bight, the Gulf of Maine and the Bay of Fundy.

Subject Headings: Three-dimensional models | Water circulation | Simulation models | Sea water | Geometry | Flow simulation | Ocean currents | California | United States | Mid Atlantic | Gulf of Maine

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