Instrumentation for Real-Time Optical Diagnostics in Compressible Turbulent Flows.

Abstract

Over the past several years, the Principal Investigator has made significant contributions to the to the understanding of compressible turbulent flows. He has utilized innovative modern optical diagnostics to explore (1) the turbulence structure of wall bounded shear layers, (2) the effects of extra strain rates, such as convex curvature and favorable pressure gradient, on the turbulence structure of wall bounded shear layers, (3) the effect of compressibility on the Reynolds stresses and the turbulence structure of free shear layers, and (4) control of supersonic jets. The latest state-of-the-art optical diagnostics that the PI has been using include Filtered Rayleigh Scattering (FRS) technique for flow visualizations, and Planar Doppler Velocimetry (PDV) technique for 4-instantaneous velocity measurements.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1996
Accession Number
ADA311340

Entities

People

  • M. Sawiny

Organizations

  • Ohio State University

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Boundary Layer
  • Cameras
  • Flow
  • Flow Visualization
  • Lasers
  • Layers
  • Materials Science
  • Measurement
  • Pressure Gradients
  • Pulsed Lasers
  • Rayleigh Scattering
  • Strain Rate
  • Supersonic Flow
  • Turbulence
  • Turbulent Flow
  • Turbulent Mixing

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Fluid Dynamics.
  • Optical Physics and Photonics.

Technology Areas

  • Hypersonics