High Resolution Simulation of Turbulent Flow in a Channel.

Abstract

A simulation of turbulence in a channel is performed using 128 x 64 x 65 grid points. No turbulence models are incorporated in the calculation. After an initial lower resolution run, the flow is driven by a constant force. At the end of the run, which lasts 54.4 time units, the flow achieves a dynamic equilibrium in the sense that the wall shear stress is balanced almost exactly by the driving force. The global properties of the flow are discussed in detail and some initial results of coherent structures using conditional sampling are presented. Keywords: Turbulence; Conditional sampling; Simulation.

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Document Details

Document Type
Technical Report
Publication Date
Sep 25, 1987
Accession Number
ADA186022

Entities

People

  • D. M. Carroll
  • R. I. Leighton
  • Robert A. Handler

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Channel Flow
  • Classification
  • Computational Fluid Dynamics
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Flow
  • High Resolution
  • Layers
  • Mechanical Properties
  • Military Research
  • Sampling
  • Shear Stresses
  • Stresses
  • Turbulence
  • Turbulent Flow
  • Turbulent Mixing

Fields of Study

  • Engineering
  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Combustion and Flow Dynamics.
  • Regression Analysis.