Flow Separation Around a Solitary Dike: Eddy Viscosity and Mesh Considerations

by D. R. Richards, US Army Engineer Waterways, Experiment Station, Vicksburg, United States,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering


The hydronamic model RMA-2V has been verified on a variety of global circulation studies. These studies rarely involved separated flow patterns around sudden expansions or contractions. This paper presents results from numerical and physical studies of separated flow around a solitary dike. Particular emphasis is placed on eddy viscosity and mesh refinement issues as they pertain to numerical model accuracy.

Subject Headings: Numerical analysis | Model accuracy | Viscous flow | Mesh generation | Hydrologic models | Hydraulic models | Boundary layers | Mathematical models

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