Accession Number:

ADA025439

Title:

Flow Visualization of the Turbulent Jet at the Exit of a Single Element Nozzle by Holographic Technique, and Mean Velocity Profile Measurements with a Laser Doppler Anemometer

Descriptive Note:

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s):

Report Date:

1976-03-01

Pagination or Media Count:

81.0

Abstract:

The successful application of the holographic techniques for flow visualization is reported. the investigation was conducted on the turbulent jet at the exit of a single element oscillating jet nozzle. Both single and double exposure holographic interferograms were employed to determine for an unsteady oscillating turbulent jet, the jet structure, spreading rates and the flapping phenomenon. The structure of the steady jet was also investigated for comparison purposes. The mean velocity profile measurements of the oscillating and non- oscillating jet were also made with the help of a laser Doppler anemometer and results were compared with the theory and published results obtained by other methods.

Subject Categories:

  • Lasers and Masers
  • Test Facilities, Equipment and Methods
  • Fluid Mechanics
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE