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Unstructured Large Eddy Simulation Technology for Prediction and Control of Jet Noise

[+] Author Affiliations
Yaser Khalighi, Frank Ham, Parviz Moin

Cascade Technologies Inc., Palo Alto, CA

Sanjiva K. Lele

Stanford University, Stanford, CA

Tim Colonius

California Institute of Technology, Pasadena, CA

Robert H. Schlinker, Ramons A. Reba, John Simonich

United Technologies Research Center, East Hartford, CT

Paper No. GT2010-22306, pp. 57-70; 14 pages
doi:10.1115/GT2010-22306
From:
  • ASME Turbo Expo 2010: Power for Land, Sea, and Air
  • Volume 1: Aircraft Engine; Ceramics; Coal, Biomass and Alternative Fuels; Education; Electric Power; Manufacturing Materials and Metallurgy
  • Glasgow, UK, June 14–18, 2010
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-4396-3 | eISBN: 978-0-7918-3872-3
  • Copyright © 2010 by ASME and United Technologies Research Center

abstract

Development of concepts for reduction of jet noise has relied heavily on expensive experimental testing of various nozzle designs. For example, the design of nozzle serrations (chevron) and internal mixer/ejector nozzles have relied largely on laboratory and full-scale testing. Without a deeper understanding of the sources of high-speed jet noise it is very difficult to effectively design configurations that reduce the noise and maintain other performance metrics such as nozzle thrust. In addition, the high complexity of the flow limits the success of a parametric black-box optimization.

Copyright © 2010 by ASME and United Technologies Research Center

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