Physical Model Simulation of the Hydraulics of Masonboro Inlet, North Carolina.
ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MISS
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This report is part of the General Investigation of Tidal Inlets Inlet Hydraulics Study. The study involves the investigation of the tide- and wave-generated flow regime and water-level fluctuations in the vicinity of coastal inlets. Masonboro Inlet was selected as an inlet to be used in determining the usefulness and reliability of physical and mathematical models in predicting hydraulic characteristics of inletbay systems. This report presents results obtained from the physical model study. The Masonboro Inlet fixed-bed model, constructed to scales of 1300 horizontally and 160 vertically, reproduced an area extending to the -45 ft contour in the Atlantic Ocean and to the nodal points in each interior channel. The wetlands were accurately reproduced near the inlet but those areas farther bayward, being relatively flat, were reproduced schematically and artificially bent into the research flume to provide storage for the tidal prism. The model was equipped with appurtenances necessary for accurate reproduction and measurement of tides, tidal currents, waves, and other significant prototype phenomena. Model verification tests assured that the model hydraulic regimen was in satisfactory agreement with that of the prototype. Five velocity ranges with three stations at each range were verified in the model readings were taken at three depths at each station and seven tidal elevation gages in the ocean and bay were also verified.
- Physical and Dynamic Oceanography
- Fluid Mechanics