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Proceedings Paper

Spectral composition of inhomogeneities of intensity of laser beam translucent the supersonic jet near the nozzle
Author(s): Dmitri A. Marakasov; Nikolai G. Melnikov; Valentina M. Sazanovich; Ruvim Sh. Tsvyk; Andrei N. Shesternin
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Paper Abstract

The analysis of results of experiments on laser transillumination of the flooded supersonic jet on the wind tunnel of Institute of theoretical and applied mechanics SB RAS is fulfilled. The time spectra of fluctuations of the received power at different values of pressure in the chamber as well as the transformation of the spectra for the initial part of the jet with increasing distance from the nozzle are discussed. The change in the slope of the high-frequency part of the spectrum when lifting beam above the nozzle is demonstrated. Local maxima of the spectral density at frequencies corresponding to the discrete frequencies of acoustic tones generated by the stream are found.

Paper Details

Date Published: 25 November 2014
PDF: 6 pages
Proc. SPIE 9292, 20th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 929217 (25 November 2014); doi: 10.1117/12.2074769
Show Author Affiliations
Dmitri A. Marakasov, V.E. Zuev Institute of Atmospheric Optics (Russian Federation)
Nikolai G. Melnikov, V.E. Zuev Institute of Atmospheric Optics (Russian Federation)
Valentina M. Sazanovich, V.E. Zuev Institute of Atmospheric Optics (Russian Federation)
Ruvim Sh. Tsvyk, V.E. Zuev Institute of Atmospheric Optics (Russian Federation)
Andrei N. Shesternin, V.E. Zuev Institute of Atmospheric Optics (Russian Federation)


Published in SPIE Proceedings Vol. 9292:
20th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics
Oleg A. Romanovskii, Editor(s)

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