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

Abstract

LONG-TERM GOALS: 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. OBJECTIVES: 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 interplay between the rheological stress and turbulence modulation in determining the transition of flow modes and hydrodynamic dissipation. 3. Extending the existing turbulence-resolving numerical study to coarser grain (sand) and polydispersed (e.g., size, density and shape) transport based on four-way-coupled Eulerian and Euler-Lagrangian numerical frameworks.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2012
Accession Number
ADA572764

Entities

People

  • Tian-jian Hsu

Organizations

  • University of Delaware

Tags

Communities of Interest

  • C4I
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Layer
  • Coastal Engineering
  • Computational Fluid Dynamics
  • Continental Shelves
  • Engineering
  • Flow
  • Fluid Flow
  • Fluid Mechanics
  • Layers
  • Particles
  • Physics Laboratories
  • Sedimentation
  • Sediments
  • Simulations
  • Tidal Currents
  • Transport Ships

Readers

  • Coastal Oceanography
  • Computational Fluid Dynamics (CFD)