In this paper, we report on progress towards developing physics-based models of sound generation by large-scale turbulent structures in supersonic jet shear layers generally accepted to be the source of aft-angle noise. Aside from obtaining better engineering prediction schemes, the development and optimization of long term jet noise reduction strategies based on controlling instability wave generated large-scale turbulence structures in the shear layer can be more successful if based on predictive flow-noise models, rather than on build and test approaches alone. Such models, if successful, may also provide a path by which laboratory scale demonstrations can be more reliably translated to engine scale. Results show that the noise radiated by large-scale structures in turbulent jet shear layers may be modeled using a RANS based PSE method and projected to the far-field using a Kirchhoff surface approach. A key enabler in this procedure is the development of near-field microphone arrays capable of providing the pressure statistics needed to validate the instability wave models. Our framework provides, for the first time, a deterministic model that will allow understanding and predicting noise radiated by large-scale turbulence.
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ASME Turbo Expo 2009: Power for Land, Sea, and Air
June 8–12, 2009
Orlando, Florida, USA
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-4882-1
PROCEEDINGS PAPER
Towards Prediction and Control of Large Scale Turbulent Structure Supersonic Jet Noise
Robert H. Schlinker,
Robert H. Schlinker
United Technologies Research Center, East Hartford, CT
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Ramons A. Reba,
Ramons A. Reba
United Technologies Research Center, East Hartford, CT
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John C. Simonich,
John C. Simonich
United Technologies Research Center, East Hartford, CT
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Tim Colonius,
Tim Colonius
California Institute of Technology, Pasadena, CA
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Kristjan Gudmundsson,
Kristjan Gudmundsson
California Institute of Technology, Pasadena, CA
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Foluso Ladeinde
Foluso Ladeinde
TTC Technologies, Centereach, NY
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Robert H. Schlinker
United Technologies Research Center, East Hartford, CT
Ramons A. Reba
United Technologies Research Center, East Hartford, CT
John C. Simonich
United Technologies Research Center, East Hartford, CT
Tim Colonius
California Institute of Technology, Pasadena, CA
Kristjan Gudmundsson
California Institute of Technology, Pasadena, CA
Foluso Ladeinde
TTC Technologies, Centereach, NY
Paper No:
GT2009-60300, pp. 217-230; 14 pages
Published Online:
February 16, 2010
Citation
Schlinker, RH, Reba, RA, Simonich, JC, Colonius, T, Gudmundsson, K, & Ladeinde, F. "Towards Prediction and Control of Large Scale Turbulent Structure Supersonic Jet Noise." Proceedings of the ASME Turbo Expo 2009: Power for Land, Sea, and Air. Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Controls, Diagnostics and Instrumentation; Education; Electric Power; Awards and Honors. Orlando, Florida, USA. June 8–12, 2009. pp. 217-230. ASME. https://doi.org/10.1115/GT2009-60300
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