An Approach for Modeling the Upper Chesapeake Bay

by Billy H. Johnson, US Army Engineer Waterways, Experiment Station, United States,



Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract:

To resolve the bay geometry with a minimum number of grid points, boundary-fitted coordinates are employed. A major question is how to prescribe tidal boundary conditions at the Bay Bridge and how to handle the Chesapeake and Delaware (C&D) Canal in an economical fashion when applying the model in a predictive mode. The approach discussed involves first applying a two-dimensional laterally averaged model of the complete Chesapeake and Delaware system. The computed water-surface elevation and vertical distribution of salinity at the Bay Bridge and the entrance to the C&D Canal are then saved and applied as boundary conditions in the three-dimensional Upper Bay model.



Subject Headings: Three-dimensional models | Salt water intrusion | Bays | Hydrodynamics | Domain boundary | Water surface

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