Feasibility of Utilizing Laser Doppler Velocimeter Techniques in Very Clean Wind Tunnels

Abstract

A laser Doppler velocimeter was tested in a two-foot transonic wind tunnel under clean flow conditions without artificial seeding. Both the classical and photon correlation modes were tested. Both systems worked initially; however, as the tunnel cleaned up during operation, the classical system ceased producing data within a few minutes of run time and the photon correlation mode ceased function after about twenty minutes. The next step in developing a working system is described.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1979
Accession Number
ADA074244

Entities

People

  • Anthony E. Smart
  • James D. Trolinger
  • Virgil A. Cline

Organizations

  • University of Dayton

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Correlators
  • Detection
  • Dew Point
  • Doppler Systems
  • Engineering
  • Frequency
  • Frequency Response
  • Government Procurement
  • Governments
  • Laser Velocimeters
  • Lasers
  • Measurement
  • Moisture Content
  • Scattering
  • Velocimeters
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Brain and Cognitive Science; Experimental Psychology; Cognitive Neuroscience
  • Fluid Dynamics.
  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy