Further development and validation of an innovative DES-based methodology for the prediction of jet noise from installed configurations is presented. A Grey-Area improved Delayed Detached-Eddy Simulation (DDES) model has been implemented in an industrial solver and validated for a static single-stream jet. The measured far-field sound directivity was predicted to within 2 dB and frequencies up to around St = 2 to 3 were resolved on a grid of 15.4M cells. To address the key problem of defining a suitable location of the data surface for Ffowcs Williams & Hawkings (FWH) far-field integration, a sensor function based on a statistical evaluation of the vorticity magnitude is proposed. This is applied to a complex installed jet/wing configuration, for which predicted far-field noise levels are shown. A strong increase in noise due to the presence of the wing of up to 18 dB in the forward arc is reported. This interaction noise becomes stronger and shifts to higher frequencies when the wing is moved closer to the jet.
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ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition
June 26–30, 2017
Charlotte, North Carolina, USA
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
978-0-7918-5080-0
PROCEEDINGS PAPER
Further Development and Initial Validation of Innovative DES-Based Approaches for the Prediction of Jet Noise Installation Effects
Charles Mockett,
Charles Mockett
CFD Software E+F GmbH, Berlin, Germany
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Marian Fuchs,
Marian Fuchs
CFD Software E+F GmbH, Berlin, Germany
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Felix Kramer,
Felix Kramer
CFD Software E+F GmbH, Berlin, Germany
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Ulf Michel,
Ulf Michel
CFD Software E+F GmbH, Berlin, Germany
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Frank Thiele,
Frank Thiele
CFD Software E+F GmbH, Berlin, Germany
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Mathias Steger
Mathias Steger
Rolls-Royce Deutschland Ltd. & Co KG, Dahlewitz, Germany
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Charles Mockett
CFD Software E+F GmbH, Berlin, Germany
Marian Fuchs
CFD Software E+F GmbH, Berlin, Germany
Felix Kramer
CFD Software E+F GmbH, Berlin, Germany
Ulf Michel
CFD Software E+F GmbH, Berlin, Germany
Frank Thiele
CFD Software E+F GmbH, Berlin, Germany
Mathias Steger
Rolls-Royce Deutschland Ltd. & Co KG, Dahlewitz, Germany
Paper No:
GT2017-65253, V02CT43A013; 11 pages
Published Online:
August 17, 2017
Citation
Mockett, C, Fuchs, M, Kramer, F, Michel, U, Thiele, F, & Steger, M. "Further Development and Initial Validation of Innovative DES-Based Approaches for the Prediction of Jet Noise Installation Effects." Proceedings of the ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition. Volume 2C: Turbomachinery. Charlotte, North Carolina, USA. June 26–30, 2017. V02CT43A013. ASME. https://doi.org/10.1115/GT2017-65253
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