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

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.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2011
Accession Number
ADA578497

Entities

People

  • Alejandro Sánchez
  • Weiming Wu

Organizations

  • Engineer Research and Development Center

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Army Corps Of Engineers
  • Beach Erosion
  • Boltzmann Equation
  • Coastal Engineering
  • Engineering
  • Engineers
  • Equations
  • Grain Size
  • Hydraulics
  • Materials
  • Measurement
  • Navigation
  • Regions
  • Sedimentation
  • Simulations
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Environmental science

Readers

  • Coastal Oceanography
  • Coastal and Marine Engineering/Sediment Transport/Hydraulic Engineering