Implementation of Structures in the CMS: Part 4, Tide Gate
ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB
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This Coastal and Hydraulics Engineering Technical Note CHETN describes the mathematical formulation, numerical implementation, and input specifications of tide gates in the Coastal Modeling System CMS operated through the Surface-water Modeling System SMS. A coastal application at an idealized inlet is provided to illustrate the implementation procedure and demonstrate the model capability. A tide gate is an opening structure built across a river or a channel in an estuarine system. By preventing saltwater intrusion to farm land and allowing freshwater drainage to the estuary, tide gates are commonly used for flow and flooding control, and salinity and sediment management Figure 1. Because a tide gate is a significant component of hydrodynamic and sediment transport controls in the coastal zone, it is important to incorporate the structure and to simulate its effect in the CMS. The CMS, developed by the Coastal Inlets Research Program CIRP, is an integrated suite of numerical models for simulating water surface elevation, current, waves, sediment transport, and morphology change in coastal and inlet applications. It consists of a hydrodynamic and sediment transport model, CMS-Flow, and a spectral wave model CMS-Wave Sanchez et al. 2011a Sanchez et al. 2011b Lin et al. 2011. Both are described in Part I of this series Li et al. 2013.
- Hydrology, Limnology and Potamology
- Numerical Mathematics
- Civil Engineering