NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Application of optical methods to the study of jet noise and turbulenceOptical methods are generally applied in fluid mechanics for either visualization or measurement. The use of a laser anemometer to study flow velocity in a jet and its relaton to the sound radiated is described. The same acoustic emission phenomenon is also measued by combining the signals from four Schlieren systems with that from an interferometer. The use of an optical Fourier transformation approach with real time analysis to determine the spatio-temporal structure of a field of mass volume such as a waveguide or free jet is also examined.
Document ID
19810007304
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Sava, P. G.
(Institut Franco-Allemand de Recherches Saint-Louis, France)
Haertig, J.
(Institut Franco-Allemand de Recherches Saint-Louis, France)
Date Acquired
September 4, 2013
Publication Date
August 1, 1980
Subject Category
Optics
Report/Patent Number
ISL-CO-201/80
Meeting Information
Meeting: Journees sur les Methodes Optiques a la Mecanique des Fluides
Location: Orsay
Country: France
Start Date: November 26, 1979
End Date: November 27, 1979
Accession Number
81N15819
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

There are no available downloads for this record.
No Preview Available