Turbulent Mixing in Stably Stratified Flows

Abstract

High resolution direct numerical simulations are used to investigate the dynamics of turbulence in flows subject to strong stable stratification, which are common in natural settings. Results are presented for two categories of simulations, uniform and non-uniform density stratification. For all simulated flows, the density stratification was held constant in time, and there was no ambient shear. Flows with uniform density stratification are first analyzed to help provide clear insight to physical processes, followed by flows with non-uniform density stratification which better represent the stratification occurring in nature.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2008
Accession Number
ADA500763

Entities

People

  • David A. Hebert
  • Stephen M. de Bruyn Kops

Organizations

  • University of Massachusetts Amherst

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Boundary Layer
  • Buoyancy
  • Computational Fluid Dynamics
  • Equations Of Motion
  • Fluid Flow
  • Froude Number
  • Heat Transfer
  • Layers
  • Mechanical Properties
  • Oceanography
  • Physics Laboratories
  • Reynolds Number
  • Stratified Fluids
  • Terrain
  • Turbulence
  • Turbulent Flow
  • Turbulent Mixing

Readers

  • Fluid Dynamics.