Lessons from Ten Years Experience in 2D Sediment Modelingby W. H. McAnally, Jr., U.S. Army Engineer Waterways, Experiment Station, United States,
Abstract: The purpose of this paper is to share some of the lessons learned from the experience of the Hydraulics Lab Estuaries Division (WESHE) in applying two-dimensional (2D) numerical models for sediment transport. The WESHE experience has been driven by the modeling needs of the U. S. Army Corps of Engineers (USACE) in meeting its mission requirements of providing for safe and efficient navigation and flood control. In particular, the work has been designed to address a) channel and navigation facility sedimentation rates, b) channel morphology effects for flood control and navigation projects, c) erosion and deposition rates in open water dredged material placement sites, and d) suspended sediment concentration changes caused by projects or dredging. Because of this orientation, the WESHE program has been oriented toward production modeling that produces useful results under strong schedule and cost constraints.
Subject Headings: Two-dimensional models | Hydrologic models | Dredged materials | Hydraulic models | Estuaries | Numerical models | Sediment transport
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