Compressible Mixing Layers with and without Particles

Abstract

An extensive experimental research program has been carried out to explore the effects of compressibility in high Reynolds number turbulent free mixing layers. Three mixing layers with convective Mach numbers of 0.51 (Case 1) , 0.64 (Case 3), and 0.86 (Case 2) were investigated. While Case 1 marks the onset of the compressibility effect on the mixing layer growth rate, the vorticity growth rate of Case 3 is approximately 50% less than that of an incompressible mixing layer with the same velocity ratio. Various experimental techniques such as laser Doppler velocimetry, two-point space-time correlations, filtered Rayleigh scattering based flow visualizations, and conventional laser sheet lighting have been utilized.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1992
Accession Number
ADA254854

Entities

People

  • D.d. Glawe
  • G.s. Elliott
  • M. Samimy
  • M.f. Reeder
  • S.a. Arnefte

Organizations

  • Ohio State University

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Computational Fluid Dynamics
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Mechanics
  • Image Processing
  • Mach Number
  • Mechanics
  • Mie Scattering
  • Ramjet Engines
  • Rayleigh Scattering
  • Reynolds Number
  • Scattering
  • Shear Stresses
  • Supersonic Combustion Ramjet Engines
  • Turbulence
  • Turbulent Mixing

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Fluid Dynamics.

Technology Areas

  • Directed Energy
  • Space
  • Space - Hall-Effect Thruster