Steady Flow Field Measurements Using Laser Doppler Velocimetry.

Abstract

A computer-integrated LDV system utilizing a Helium-Neon laser was designed, assembled and tested for use in the study of steady flow field quantities. All system elements were integrated to include a traverse mechanism, signal processing and conditioning, computer interface and display. The system was initially calibrated utilizing a rotating wheel of known velocity. Experimental flow measurement tests of the system were conducted across a conventional free jet flow and in the Naval Postgraduate School low speed wind tunnel. The flow field velocity measurements made in the wind tunnel were verified usin an existing pressure data acquisition station and a standard pitot static probe. Keywords: Laser doppler velocimetry.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1987
Accession Number
ADA195228

Entities

People

  • Ricky E. Wilson

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Acousto-Optic Modulators
  • Acquisition
  • Argon Lasers
  • Computer Programs
  • Data Acquisition
  • Flow Fields
  • Fluid Dynamics
  • Fluid Mechanics
  • Frequency Shift
  • Hydrodynamics
  • Ion Lasers
  • Laser Beams
  • Lasers
  • Measurement
  • Processing Equipment
  • Signal Processing
  • Wind Tunnels

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Software Engineering

Technology Areas

  • Directed Energy