Archives of Acoustics, 1, 2, pp. 87-108, 1976

Noise and structure of a gas jet at the choked outflow from a perforated disk

Wiktor M. Jungowski
Warsaw Technical University
Poland

Witold C. Selerowicz
Warsaw Technical University
Poland

With the aid of experimental and theoretical investigations the main gasodynamic and acoustic properties of a gas jet discharging from a disk have been determined, and the range of efficient operation of the disk, as an element that reduces the outflow noise, has been established. The properties of the gas jet from a disk and a nozzle were compared.
Full Text: PDF
Copyright © Polish Academy of Sciences & Institute of Fundamental Technological Research (IPPT PAN).

References

M. G. DAVIES, D. E. S. OLDFIELD, Tones from a choked axisymmetric jet, Acoustics, 12, 4 (1962).

M. J. FISHER, P. A. LUSH, M. H. BOURNE, Jet noise, Jour. of Sound and Vibr., 28 (3), 563-585 (1973).

D. R. GLASS, Effects of acoustic feedback on the spread and decay of supersonic jets, AIAA Jour., 6, 10 (1968).

A. G. HAMMITT, The oscillation and noise of an overpressure sonic jet, JASA, 28, 9 (1961).

(5) W. M. JUNGOWSKI, A. P. SZUMOWSKI, Perforated disk as an element that reduces the outlet noise, Archiwum Akustyki, 9, 3, 339-360 (1974) (in Polish).

E. S. LOVE, C. E. GRIGSBY, L. P. LEE, M. J. WOODLING, Experimental and theoretical studies of axisymmetric free jets, NASA, TR, R-6, 1959.

W. M. MAMIN, A. W. RIMSKIJ-KORSAKOw, Some properties of radiation of discrete tone by supersonic air-jet, VII Wsiesojuznaja Akusticzeskaja Konferencja po Fiziczeskoj i Techniczeskoj Akustikie, 1971, Sbornik Dokładow, Leningrad 1973 [in Russian].

L. J. POLDERVAART, A. T. VINK, A. P. J. WIJNANDS, The photographic evidence of the feedback lopp of a two-dimensional screeching supersonic jet of air, The 6th International Congress on Acoustics, 1968.

L. J. POLDERVAART, A. P. J. WIJNANDS, L. BRONKHORST, Aerosonic games with the aid of control elements and externally generated pulses, Proceedings of the AGARD specialist Meeting in Brussels, 1973.

A. POWELL, On the noise emanating from a two-dimensional jet above the critical pressure, The Aeronautical Quarterly, 4, (1953).

A. POWELL, On the mechanism of choked jet noise, Proc. Phys. Soc., 66, PT, 12-B (1953).

SHIH-I PAI, Fluid dynamics of jets, D. Van Nostrand Comp. Inc., 1955, Russian translation, GNF-ML, Moscow 1960.

R. WESTLEY, J. H. WOOLLEY, An investigation of the near noise fields of a choked axisymmetric air jet, Aerodynamic Noise, Proc. of AFOSR-UTIAS Symposium, 1968.