Discussion of a Three-Dimensional Hydrodynamic Model of the Upper Chesapeake and Delaware Baysby B. B. Hsieh, US Army Engineer Waterways, Experiment Station, Vicksburg, United States,
B. H. Johnson, US Army Engineer Waterways, Experiment Station, Vicksburg, United States,
D. R. Richards, US Army Engineer Waterways, Experiment Station, Vicksburg, United States,
Abstract: A time-varying three-dimensional (3-D) numerical model of the Upper Chesapeake and Delaware Bays has been developed to address the impact of deepening the Chesapeake and Delaware (C&D) Canal and to determine long-term transport through the canal. The water surface, 3-D velocity field, salinity, and temperature are computed. Major physical processes affecting bay circulation and vertical mixing are modeled. Particular features of the model include the solution of transformed equations on a boundary-fitted grid in the horizontal plane, an external mode that provides water-surface elevations to the internal 3-D computations, and a simplified second-order turbulence model that involves the solution of only algebraic equations.
Subject Headings: Three-dimensional models | Hydrologic models | Bays | Hydrodynamics | Terrain models | Computer models | Salt water | Water circulation | Three-dimensional analysis | North America | Delaware | United States | Chesapeake Bay region
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