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


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: Bays | Bridges | Canals | Hydraulic models | Structural models | Two-dimensional models | Numerical methods | Three-dimensional models | Delaware | United States

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