Inlet Stability Solutions for Tributary Inflow

by Francis F. Escoffier, (F.ASCE), Retired; Formerly, Chf., Hydraulics and Sanitary Section, U.S. Army Corps of Engrs., Mobile, Ala.,
Todd L. Walton, Jr., (M.ASCE), Evaluation Branch, Coastal Engrg. Research Center, Fort Belvoir, Va.; formerly, Asst. Prof., Extension, Marine Advisory Program, Coastal and Oceanographic Engrg. Lab., Univ. of Florida, Gainesville, Fla.,

Serial Information: Journal of the Waterway, Port, Coastal and Ocean Division, 1979, Vol. 105, Issue 4, Pg. 355-355

Document Type: Journal Paper


Formulas in use relating to the flow of water through tidal inlets do not take into account the joint effects of inertia and tributary inflow that play a significant role in determining the characteristics of many inlets. In a proposed analytical model these two factors are considered where the tributary inflow to the bay causes ebb flow through the inlet to exceed flood flow. The solution method applies to the same type inlets as studied by E.I. Brown and G. H. Keulegan, i.e. inlets that have a bay in which the water rises and falls uniformly over the entire bay area. An additional assumption is that the discharge into and from the inlet is governed by a head loss that is quadratic in velocity.

Subject Headings: Bays | Inlets (waterway) | Inflow | Tides | Water discharge | Water flow | Joints | Inertia

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