Open-File Report 2011–1223
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First posted October 14, 2011 For additional information contact: Part or all of this report is presented in Portable Document Format (PDF); the latest version of Adobe Reader or similar software is required to view it. Download the latest version of Adobe Reader, free of charge. |
Hittle, Elizabeth, 2011, Simulations of flow and prediction of sediment movement in Wymans Run, Cochranton Borough, Crawford County, Pennsylvania: U.S. Geological Survey Open-File Report 2011–1223, 25 p.
Abstract
Introduction
Purpose and Scope
Description of Study Area
Channel Characterization
PA 285 Bridge
Model Selection and Construction
HEC-RAS Model Construction
Channel Bathymetry
Determination of Manning’s n Values
June 2008 Storm Data
Hypothetical Channel Geometries and Bridge Design
MD_SWMS Construction
MD_SWMS Bathymetry
MD_SWMS Computational Grid and Boundary Conditions
Model Calibration-Drag Coefficient
Simulation Results
HEC-RAS Model Results
FaSTMECH Model Results–Water-Surface Elevations
FaSTMECH Model Results–Velocity Distribution
Velocity Distribution for Initial Channel Geometry
Velocity Distribution for Hypothetical Channel Geometries
FaSTMECH Model Results–Shear-Stress Distribution
Shear-Stress Distribution for Existing Channel Geometry
Shear-Stress Distribution for Hypothetical Channel Geometries
Model Limitations
Summary and Conclusions
Acknowledgments
References Cited