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Evaluation of Integral Turbulence Scale through the Fan Stage of a Turbofan Using Hot Wire Anemometry and Large Eddy Simulation

Odier, Nicolas and Duchaine, Florent and Gicquel, Laurent Y.M. and Staffelbach, Gabriel and Thacker, Adrien and Garcia Rosa, Nicolas and Dufour, Guillaume and Müller, Jens-Dominik Evaluation of Integral Turbulence Scale through the Fan Stage of a Turbofan Using Hot Wire Anemometry and Large Eddy Simulation. (2018) In: ASME Turbo Expo 2018: Turbomachinery Technical Conference and Exposition, 11 June 2018 - 15 June 2018 (Oslo, Norway).

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Official URL: http://doi.org/10.1115/GT2018-75741

Abstract

This paper aims at evaluating wall-modeled LES capabilities to accurately predict turbulence properties in an aero-engine turbomachinery configuration. To do so, two LES numerical setups are compared, the first one using a 2nd-order space and time numerical scheme on a user-defined mesh, the second one using a 3rd order accurate in space and 4th order time numerical scheme on an automatically adapted mesh. Numerical results are compared to hot-wire anemometry measurements. Turbulence is evaluated through a triple velocity decomposition, enabling the evaluation of stochastic velocity fluctuations. A very fair agreement is evidenced regarding the numerically predicted turbulence spectra and integral turbulence time scale. Turbulence intensity values is however over estimated downstream of the stator, underlying the need for a second mesh adaptation.

Item Type:Conference or Workshop Item (Paper)
Additional Information:ISBN: 978-0-7918-5101-2
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:Other partners > Airbus (FRANCE)
French research institutions > Centre National d'Études Spatiales - CNES (FRANCE)
Other partners > EDF (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
French research institutions > Office National d'Etudes et Recherches Aérospatiales - ONERA (FRANCE)
Other partners > Total (FRANCE)
Other partners > Météo France (FRANCE)
Other partners > Queen Mary University of London - QMUL (UNITED KINGDOM)
Other partners > SAFRAN (FRANCE)
Laboratory name:
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Deposited By: Guillaume Dufour
Deposited On:12 Oct 2018 09:42

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