A Laser Velocimeter for the AEDC Acoustic Research Tunnel

Abstract

An operational laser velocimeter (LV), installed in the Acoustic Research Tunnel (ART) at the Arnold Engineering Development Center (AEDC), for routine measurement of mean flow velocities, flow angle, and turbulent intensity is described. It is a two component, dual-scatter, moving-fringe-type system collecting forward-scattered radiation. Basic LV theory and one of the foremost problems of application (particle lag) are discussed in some detail. Test data compared with conventional measurements of velocity and flow angle are shown.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1977
Accession Number
ADA040903

Entities

People

  • V. A. Cline

Organizations

  • Arnold Engineering Development Complex

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Accuracy
  • Acquisition
  • Air Force
  • Boundary Layer
  • Data Acquisition
  • Data Analysis
  • Engineering
  • Filters
  • Frequency
  • Frequency Shift
  • Laser Velocimeters
  • Mach Number
  • Measurement
  • Particles
  • Shear Stresses
  • Velocimeters
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Fluid Dynamics.
  • Systems Analysis and Design

Technology Areas

  • Directed Energy