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Simulations of CrOr and fan broadband NoisE with reduced order modelling

Objective

The prediction of Open Rotor and UHBR Fan broadband noise on realistic configurations is still an open challenge. The two major sources of broadband noise are the trailing edge noise and the wake interaction noise. The first source is related to a strong vortex shedding at the blade trailing edge and the second to the interaction of the front blades wake turbulence with the rear blades leading edge. Up to now, semi-analytic models used in the industry for the prediction of the broadband noise of these two sources are based essentially on turbulence statistics from steady low-resolution simulations which yield to inaccurate results. The SCONE project proposes to improve the Open Rotor and UHBR Fan broadband noise prediction by using high-fidelity Large-Eddy Simulation (LES). The turbulence statistics obtained with this high-fidelity approach will allow to directly compute the noise but also to provide enhanced inputs to improve semi-empirical models. In order to reduce the cost of LES simulations, optimized numerical methods will be developed. Therefore, the SCONE project deals with three objectives: to build improved turbulence statistics data to feed the semi-analytic models by the use of high fidelity CFD methods, to provide validated high-fidelity methods for direct broadband noise computation and to improve existing semi-analytic models. This project will contribute to the development of ‘quiet’ CROR and UHBR engines.

Coordinator

CENTRE EUROPEEN DE RECHERCHE ET DEFORMATION AVANCEE EN CALCUL SCIENTIFIQUE
Net EU contribution
€ 350 000,00
Address
Avenue G Coriolis 42
31057 Toulouse Cedex
France

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Region
Occitanie Midi-Pyrénées Haute-Garonne
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Non-EU contribution
€ 18,75

Participants (2)

INSTITUT SUPERIEUR DE L'AERONAUTIQUE ET DE L'ESPACE
France
Net EU contribution
€ 150 000,00
Address
Avenue Edouard Belin 10
31055 Toulouse

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Region
Occitanie Midi-Pyrénées Haute-Garonne
Activity type
Higher or Secondary Education Establishments
Non-EU contribution
€ 16 248,75
ECOLE CENTRALE DE LYON
France
Net EU contribution
€ 100 000,00
Address
Avenue Guy De Collongue 36
69134 Ecully

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Region
Auvergne-Rhône-Alpes Rhône-Alpes Rhône
Activity type
Higher or Secondary Education Establishments
Non-EU contribution
€ 0,00