Resistance Coefficient in a Tidal Channel

by Richard N. Weisman, Lehigh Univ, United States,
Gerard P. Lennon, Lehigh Univ, United States,
Fred E. Schuepfer, Lehigh Univ, United States,

Document Type: Proceeding Paper

Part of: Estuarine and Coastal Modeling

Abstract: In applying a numerical hydrodynamic model to the tidal channel-lagoon complex around Great Sound, New Jersey, it became apparent that the model guidelines for the resistance coefficient would not be satisfactory. An independent estimate for Manning's n was made by measuring water surface elevations and discharge over a tidal cycle and calculating n using the one-dimensional equation of motion. Generally, the ebb flow Manning's n exceeded the flood flow values, which is a surprising result in a flood dominant system.

Subject Headings: Tides | Load and resistance factor design | Equations of motion | Flow resistance | Flow measurement | Channel flow | Water flow | Numerical models | Hydraulic models | New Jersey | North America | United States

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