Application of Two-Dimensional Model to Predict Fine Sediment Depositionby Ronald E. Heath, US Army Engineering Corps, United States,
Ronald R. Copeland, US Army Engineering Corps, United States,
Abstract: The TABS-2 two-dimensional numerical modeling system was used to predict the potential for fine sediment deposition in the lock approach channels at Lock and Dam Nos. 4 and 5 on the Red River near Shreveport, Louisiana. This paper outlines the numerical modeling study procedure developed during the Red River navigation study with specific application at Lock and Dam Nos. 4 and 5. The paper describes the importance of hydrodynamic boundary conditions, sediment concentrations and sizes, and flow durations. The two-dimensional numerical model was very effective for evaluating specific design alterations and their effect on fine sediment deposition in the upstream and downstream lock approach channels.
Subject Headings: Two-dimensional models | Sediment | Numerical models | Hydrologic models | Hydraulic models | Locks (dam) | Locks (waterway) | Numerical analysis | North America | Louisiana | United States
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