Subgrid Scale Modeling for LES Simulation of Flow in a Turbulent Bottom Boundary Layer

Abstract

The long-range goal of this work is to develop improved understanding and predictive capability for shallow water dynamics. To develop a subgrid scale model for large eddy simulation (LES) of the flow in a turbulent stratified flow in shallow water, based on parameterizations determined from field measurements, direct numerical simulation (DNS) studies, and theoretical considerations. The aim is to provide accurate characterization of energy dissipation and Reynolds stress close to surface and bottom boundaries in a way which can be easily incorporated in predictive, coarse-grid models of flow in the littoral zone under a variety of conditions. This work is complementary to other ongoing ONR funded computational (Slinn) and observational (Dhanak) studies.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2003
Accession Number
ADA619120

Entities

People

  • Donald Slinn
  • Manhar R. Dhanak
  • Oleg Zikanov

Organizations

  • Florida Atlantic University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Layer
  • Coastal Engineering
  • Deep Water
  • Engineering
  • Fluid Mechanics
  • Kinetic Energy
  • Large Eddy Simulation
  • Layers
  • Littoral Zones
  • Mechanical Engineering
  • Mechanics
  • Shallow Water
  • Simulations
  • Stresses
  • Water
  • Wind Stress

Readers

  • Coastal Oceanography
  • Fluid Mechanics and Fluid Dynamics.