Accession Number : ADA578497


Title :   A Non-Equilibrium Sediment Transport Model for Coastal Inlets and Navigation Channels


Descriptive Note : Journal article


Corporate Author : ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB


Personal Author(s) : Sanchez, Alejandro ; Wu, Weiming


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a578497.pdf


Report Date : Jan 2011


Pagination or Media Count : 11


Abstract : 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.


Descriptors :   *CHANNELS(WATERWAYS) , *EQUATIONS , *INLETS(WATERWAYS) , *SEDIMENT TRANSPORT , AVALANCHES , DEPTH , FLOW , HYDRODYNAMICS , LOADS(FORCES) , MORPHOLOGY , OCEAN BOTTOM , OCEAN CURRENTS , POROSITY , VELOCITY , VISCOSITY , WAVES


Subject Categories : Hydrology, Limnology and Potamology
      Numerical Mathematics


Distribution Statement : APPROVED FOR PUBLIC RELEASE