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

Abstract

The long term goal of this research 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. This study specifically focuses on numerical modeling of critical processes at small-scale. Specific objectives are 1. To develop turbulence-resolving numerical model of fine sediment transport in the oscillatory boundary layer in order to understand how turbulence-sediment interactions can determine fluid mud transport and the state of muddy seabed. 2. To develop a two-dimensional-vertical (2DV) numerical model based on Reynolds-averaged Navier-Stokes (RANS) equations and volume of fluid method for free-surface tracking to study mechanisms causing landward and seaward fine sediment transport in inter-tidal zones. 3. To understand the competing effects between mud dissipation and shoaling in determining the resulting nonlinear wave propagation using a 2DV-RANS model for wave-mud interactions.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2011
Accession Number
ADA557192

Entities

People

  • Tian-jian Hsu

Organizations

  • University of Delaware

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Layer
  • Flow
  • Fluid Mechanics
  • Layers
  • Mechanical Properties
  • Mechanics
  • Physics Laboratories
  • Reynolds Number
  • Sedimentation
  • Sediments
  • Simulations
  • Tidal Currents
  • Transport Ships
  • Turbulence
  • Turbulent Mixing
  • Two Dimensional

Readers

  • Computational Fluid Dynamics (CFD)
  • Geotechnical Engineering.
  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers