THE LASER-DOPPLER VELOCIMETER AND ITS APPLICATION TO THE MEASUREMENT OF TURBULENCE

The paper examines the spatial and temporal resolution of the laser-Doppler velocimeter. Criteria for meaningful measurements are established. The effect of the random phase fluctuations introduced by the Doppler ambiguity on attempts to measure statistical quantities in turbulent flow is examined. An operational laser-Doppler velocimeter is described and measurements in both laminar and turbulent flow are presented.

• Supplemental Notes:
  • Also available in Journal of Fluid Mechanics, V60, Pt2, pp 321-362, 1973.
• Corporate Authors:

  Pennsylvania State University, University Park

  Pennsylvania Transportation Institute, Transportation Research Building
  University Park, PA  United States  16802
• Authors:
  • George, W K
  • Lumley, J L
• Publication Date: 1973-1-31

Media Info

• Pagination: 43 p.

Subject/Index Terms

• TRT Terms: Flow; Laser doppler velocimeters; Probes (Measuring devices); Spectrum analysis; Turbulence
• Candidate Terms: Turbulent flow
• Old TRIS Terms: Turbulence probes
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00057058
• Record Type: Publication
• Source Agency: National Technical Information Service
• Contract Numbers: Nonr-656(33), N00014-67A-0385-0013
• Files: TRIS
• Created Date: Jul 31 1974 12:00AM