A Numerical Modeling Framework for Cohesive Sediment Transport Driven by Waves and Tidal Currents

Abstract

The report of this objectives is to develop a robust multi-phase, multi-class numerical modeling framework for both cohesive and non-cohesive sediment transport in the fluvial, estuarine and coastal environments. 1. Developing a 3D turbulence-resolving numerical model for fine sediment transport in the oscillatory boundary layer in order to understand how turbulence-sediment interactions can determine the state of muddy seabed (transport modes). 2. Studying the attenuation of turbulence due to the presence of sediment via the interplay between sediment-induced density stratification and enhanced viscosity (rheological stress). 3. Extending the existing turbulence-resolving numerical study to coarser grain (sand) and poly-dispersed (e.g., size, density and shape) transport based on fourway- coupled Eulerian and Euler-Lagrangian numerical frameworks.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2013
Accession Number
ADA598088

Entities

People

  • Tian-jian Hsu

Organizations

  • University of Delaware

Tags

Communities of Interest

  • C4I
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Layer
  • Coastal Engineering
  • Continental Shelves
  • Engineering
  • Flow
  • Fluid Flow
  • Fluid Mechanics
  • Layers
  • Particles
  • Reynolds Number
  • Sedimentation
  • Sediments
  • Simulations
  • Tidal Currents
  • Transport Ships
  • Viscosity

Readers

  • Coastal Oceanography
  • Computational Fluid Dynamics (CFD)