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


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: Numerical models | Load and resistance factor design | Tides | Hydraulic models | Hydrologic models | Floods | Flow measurement | Equations of motion | New Jersey | United States

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