Numerical Evaluation of Training Structures

by Robert F. Athow, Jr., US Army Engineer Waterways, Experiment Station, Vicksburg, MS, USA,
Michael J. Trawle, US Army Engineer Waterways, Experiment Station, Vicksburg, MS, USA,
David R. Richards, US Army Engineer Waterways, Experiment Station, Vicksburg, MS, USA,



Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract:

A technique to evaluate estuarine training structure performance in reducing localized maintenance dredging requirements using the US Army Corps of Engineers TABS-2 numerical modeling system is presented. An application of the two-dimensional, vertically averaged numerical model is demonstrated with emphasis on high-resolution computational grids and sediment transport. A short reach of the Columbia River estuary is simulated in the numerical model. The modeled reach includes four spur dikes constructed to reduce shoaling in the adjacent navigation channel. Using the model, shoaling rates are predicted in the navigation channel with the dikes in place and then with the dikes removed.

Subject Headings: Numerical models | Sediment transport | Mathematical models | Training | Navigation (waterway) | Levees and dikes | Estuaries | United States

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