Implementation of Structures in the CMS: Part 2, Weir
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 weir structures in the Coastal Modeling System CMS operated through the Surface-water Modeling System SMS. A coastal application at Rudee Inlet, Virginia is provided to illustrate the implementation procedure and demonstrate the model capability. A weir is an overflow structure built across a river or an open channel, allowing water to flow over the top. Weirs are commonly used for flow and flooding control and salinity and sediment management. Weirs are also constructed as nearshore coastal structures, such as weir jetties, to control longshore sediment transport, stabilize channel morphology, and protect harbors and navigation channels Figure 1. In coastal applications, weirs represent unique features of solid structures and it is necessary to incorporate the structures into coastal hydrodynamic and sediment transport modeling systems. 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