Broadband entropy noise phenomena in a gas turbine combustor

Proceedings of the ASME Turbo Expo

Volumn 6, Issue PART A, 2008, Pages 795-803

  Fischer, André ^a   Bake, Friedrich ^a   Röhle, Ingo ^a  

^a Department of Fan and Compressor   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

AERO-ENGINE; BACKWARD PROPAGATING WAVES; BROADBAND NOISE; COLD TESTS; EQUIVALENT RATIOS; EXHAUST FLOW; FLAME ZONES; FLOW CONDITION; FREQUENCY RANGES; GAS TURBINE COMBUSTOR; HOT SPOT; NOISE EMISSIONS; NOISE THEORY; SCALE FACTOR; SOUND EMISSION; SOUND POWER; SOUND PRESSURE LEVEL; TEMPERATURE MIXING;

ACOUSTIC FIELDS; ACOUSTIC NOISE; COMBUSTION; COMBUSTION CHAMBERS; ENTROPY; GAS TURBINES; INDUCTION MOTORS; LEAKAGE (FLUID); MACH NUMBER; TURBOMACHINERY;

COMBUSTORS;

EID: 69949179251     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1115/GT2008-50263     Document Type: Conference Paper

References (10)

1. Strahle, W, 1971. "On combustion generated noise". J. Fluid Meek, 49(2), pp. 399-414.
2. Marble, F. E., and Candel, S. M., 1977. "Acoustic disturbances from gas non-uniformities convected through a nozzle". J. Sound Vibration, 55(2), pp. 225-243.
3. Cumpsty, N., 1979. "Jet engine combustion noise: pressure, entropy and vorticity pertubations produced by unsteady combustion or heat addition". J. Sound Vibration, 66(4), pp. 527-544.
4. Dowling, A., 1996. "Acoustics of unstable flows". In Theoretical and Applied Mechanics, T. Tatsumi, E. Watanabe, and T. Kambe, eds., Elsevier, Amsterdam, pp. 171-186.
5. Schemel, C, Thiele, F., Bake, F., Lehmann, B., and Michel, U., 2004. "Sound Generation in the Outlet Section of Gas Turbine Combustion Chambers". In 10th AIAA/CEAS Aeroacoustics Conference, no. 2004-2929.
6. Bake, F., Michel, U., and Röhle, I., 2007. "Investigation of entropy noise in aero-engine combustors". J. of Engineering for Gas Turbines and Power, 129, April, pp. 370-376.
7. Munjal, M., 1987. "Acoustics of ducts and mufflers". John Wiley and Sons.
8. Chung, J., 1977. "Rejection of flow noise using coherence function method". Journal of the Acoustical Society of America, 62, pp. 388-395.
9. Michel, U., 2007. private communication.
10. Winkler, A., Wäsle, J., and Sattelmayer, T., 2005. "Experimental investigations on the acoustic effciency of premixed swirl stabilized flames". 11th AIAA/CEAS Aeroacoustics Conference, May.