Research Training in Optical Propagation Through Turbulent Shear Flows

Abstract

An optical diagnostic system for turbulent shear flows was developed based on a Shack-Hartmann wavefront sensor. The sensor uses discrete lenslets to image small portions of the flow to determine the wavefront distortion caused by turbulent interfaces. The technique is particularly useful to identify turbulent coherent structure. The system was demonstrated for a plane mixing layer with small heat addition causing temperature to act as the passive scalar.

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Document Details

Document Type
Technical Report
Publication Date
Mar 07, 2002
Accession Number
ADA400113

Entities

People

  • C. R. Truman

Organizations

  • University of New Mexico

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Boundary Layer
  • Distortion
  • Engineering
  • Flow
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Flow
  • Laser Beams
  • Lasers
  • Layers
  • Mechanical Engineering
  • Shear Flow
  • Turbulent Flow
  • Turbulent Mixing
  • Wavefronts
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Optical Physics and Photonics.