Sound suppression mixer

Details Sound suppression mixer Sound suppression mixer

1992-12-09

1994-03-08

Bertsch, Richard A.

Power plants

Reaction motor

Air passage bypasses combustion chamber

181213, 181219, 181220, 244 1N, 23926513, F02K 138

Patent

active

052916723

ABSTRACT:
A gas turbine engine flow mixer includes at least one chute having first and second spaced apart sidewalls joined together at a leading edge, with the sidewalls having first and second trailing edges defining therebetween a chute outlet. The first trailing edge is spaced longitudinally downstream from the second trailing edge for defining a septum in the first sidewall extending downstream from the second trailing edge. The septum includes a plurality of noise attenuating apertures.

REFERENCES:
patent: 3053340 (1962-09-01), Kutney
patent: 3061038 (1962-10-01), Lawler et al.
patent: 3534831 (1970-10-01), Nagamatsu et al.
patent: 3543877 (1970-12-01), Rauvier et al.
patent: 3579993 (1971-05-01), Tanner et al.
patent: 3587973 (1971-06-01), Wolf et al.
patent: 3927522 (1975-12-01), Bryce et al.
patent: 4106587 (1978-08-01), Nash et al.
patent: 4199936 (1980-04-01), Cowan et al.
patent: 4293053 (1981-10-01), Shuttleworth et al.
patent: 4422524 (1983-12-01), Osborn
patent: 5154052 (1992-10-01), Giffin, III et al.
I. Das et al, "Aeroacoustics of Supersonic Porous Plug Nozzle Flows," Apr. 1983, AIAA Paper No AIAA-83-0775, 14 pages and FIGS. 1-5.
Maestrello, "Initial Results of a Porous Plug Nozzle For Supersonic Jet Noise Suppression," Nov. 1978, NASA Technical Memo. TM78802, 11 pages and FIGS. 1-9.
Maestrello, "An Experimental Study on Porous Plug Jet Noise Suppressor," Mar. 1979, Preprint of AIAA Paper No.79-0673, 9 pages.
Kibens et al, "Noise Reduction Mechanisms in Supersonic Jets with Porous Centerbodies," 11-13 Apr. 1983, AIAA Paper No. 83-0774, pp. 678-684.
Das et al, "Short Conical Solid/Perforated Plug-Nozzle as Supersonic Jet Noise Suppressor," Dec. 1991, Journal of Sound and Vibration, pp: 391-406.
Bauer et al, "Noise Generated by Boundary-Layer Interaction with Perforated Acoustic Liners," Jan. 26-28 1975, AIAA Paper No. 76-41, J. Aircraft, vol. 14, No. 2, Feb. 1977, pp. 157-160.

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