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1 March 2011 A Non-Equilibrium Sediment Transport Model for Coastal Inlets and Navigation Channels
Alejandro Sánchez, Weiming Wu
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This paper presents a depth-averaged sediment transport model with emphasis on morphodynamic processes near coastal inlets and navigation channels. The model solves the depth-averaged two-dimensional non-equilibrium transport equation of total-load sediment, considering bed-material hiding and exposure, avalanching and sediment transport over hard bottoms. The model is coupled with a depth-averaged circulation model and a spectral wave transformation model. Predicted bed changes are compared with measurements for two laboratory experiments of channel infilling and in a field study at Shinnecock Inlet, Long Island, NY. The results indicate that the model is capable of predicting the general trends of morphology change and provides a useful tool for engineering applications such as coastal sediment management, navigation channel maintenance, and beach erosion protection.

Alejandro Sánchez and Weiming Wu "A Non-Equilibrium Sediment Transport Model for Coastal Inlets and Navigation Channels," Journal of Coastal Research 2011(10059), 39-48, (1 March 2011).
Received: 27 October 2009; Accepted: 7 July 2010; Published: 1 March 2011
channel infilling
coastal inlet
finite volume
numerical model
sediment transport
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