A New Eddy-Based Model for Wall-Bounded Turbulent Flows

Abstract

Fundamental studies of wall-bounded turbulent flows were conducted with the aim of developing models that capture its correct spectral behavior and that allow prediction of Reynolds stress distributions in wall-bounded flows across a large range of Reynolds numbers. The model accounts for the recent new findings in wall turbulence concerning large-scale motions and the interaction with the wall and drag producing mechanisms. The experimental results shed light on the important differences between pipe, channel and boundary layer flows, which to date have been regarded as equivalent. The model forms the basis of a new approach to the near-wall model problem in LES (large-eddy simulation), and preliminary results show it to work effectively as a correction scheme for spatial resolution effects in hot-wire anemometry measurements in wall-turbulence.

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Document Details

Document Type
Technical Report
Publication Date
Feb 11, 2010
Accession Number
ADA514079

Entities

People

  • Ivan Marusic

Organizations

  • University of Melbourne

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Layer
  • Boundary Layer Flow
  • Buoyancy
  • Flow
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Hot Wire
  • Large Eddy Simulation
  • Layers
  • Measurement
  • Mechanical Properties
  • Mechanics
  • Reynolds Number
  • Turbulence
  • Turbulent Flow

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.