Large Eddy Simulation of Sediment Transport in the Presence of Surface Gravity Waves, Currents and Complex Bedforms

Abstract

LONG-TERM GOAL. Our long-term goal is to employ numerical simulation to generate accurate predictions of sediment transport in the coastal zone. OBJECTIVES. Our main focus is to build upon earlier work that produced quantitatively accurate hydrodynamics and to produce a tool for sediment transport modeling. Our tool will be a large-eddy simulation [LES] in three dimensions and time, at scales on the order of meters, and in the presence of waves and a current. In order to reach the stated goal, the hydrodynamics code will need to be changed to account for some of the sediment-fluid interactions that take place. Our numerical analysis objectives include accurate representation of the flow near rough boundaries, creation of improved models for the sub-filter scale [i.e., unresolved] motions and sediment transports, and optimization of the computer code for multiprocessor computer systems.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1999
Accession Number
ADA628897

Entities

People

  • Robert Lynnwood Street

Organizations

  • Stanford University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Layer
  • Computational Fluid Dynamics
  • Equations
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Gravity Waves
  • Large Eddy Simulation
  • Mechanics
  • Numerical Analysis
  • Physics
  • Sedimentation
  • Sediments
  • Simulations
  • Transport Ships
  • Waves

Readers

  • Acoustical Oceanography.
  • Computational Fluid Dynamics (CFD)
  • Computational Modeling and Simulation