The Use of a Laser Doppler Velocimeter in Supersonic Flow,

Abstract

Results are presented for an experimental program which investigated the application of an LDV technique in supersonic flows. This paper presents an analysis of the behavior of light-scattering particles in rapidly accelerating or shock decelerated flows, an evaluation of particle production techniques and the results of several velocity measurements. Measurements included the velocity distribution along the nozzle centerline and flow over a diamond airfoil in a Mach 3 tunnel and velocity profiles for a turbulent boundary layer in a Mach 4.8 facility. It is demonstrated that LDV measurements can be made consistently with errors of less than five percent if the particle lag is considered. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 25, 1971
Accession Number
AD0737202

Entities

People

  • David F. Gates
  • Francis W. Brown
  • William J. Yanta

Organizations

  • Naval Ordnance Laboratory

Tags

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Layer
  • Buildings And Structures
  • Flow
  • Layers
  • Light Scattering
  • Measurement
  • Particles
  • Production
  • Scattering
  • Supersonic Flow
  • Test And Evaluation
  • Turbulent Boundary Layer
  • Velocimeters

Fields of Study

  • Physics

Readers

  • Aerosol Science/Aerosol Physics
  • Combustion and Flow Dynamics.
  • Fluid Dynamics.

Technology Areas

  • Directed Energy
  • Hypersonics
  • Hypersonics - Hypersonic Flow