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Adaptive and Passive Flow Control for Fan Broadband Noise Reduction

Objective

Air traffic is predicted to grow by 5% per year in the short and medium term. Technology ad-vances are required to achieve this growth without unacceptable levels of noise. FLOCON addresses this issue by reducing fan noise at source through the development of innovative concepts based on flow control technologies. FLOCON is aimed primarily at reducing fan broadband noise. This is one of the most signifi-cant noise sources on modern aircraft and FLOCON provides one essential element of a wider effort by the industry to achieve established targets for noise reduction. Previous attempts at reducing broadband noise have been inhibited by a limited understand-ing of the dominant mechanisms and by a lack of high-fidelity numerical models. These is-sues are addressed in the ongoing PROBAND FP6 project. In FP7, FLOCON moves beyond the scope of PROBAND to the development of specific concepts for reducing noise in aero-engine fan stages. A wide range of concepts will be considered and brought up to Technology Readiness Level 4 (laboratory scale validation): • Rotor trailing edge blowing • Rotor tip vortex suction • Rotor overtip treatments • Rotor and Stator leading and trailing edge treatments • Partly lined stator vanes Experiments will be performed on two rotating rigs, supported where possible by more detailed measurements on a single airfoil and a cascade. Numerical methods will be used to optimize the concepts for experimental validation and to extrapolate the results from labora-tory scale to real engine application. The potential benefit of each concept will be assessed, including any associated penalties (weight, complexity, aerodynamic performance). Recommendations will be given as to which concepts could be integrated into new engine designs and which will require further valida-tion at industrial rig or full engine-scale. Required developments in enabling technologies will also be identified.

Call for proposal

FP7-AAT-2007-RTD-1
See other projects for this call

Funding Scheme

CP-FP - Small or medium-scale focused research project

Coordinator

DEUTSCHES ZENTRUM FUR LUFT - UND RAUMFAHRT EV
Address
Linder Hohe
51147 Koln
Germany
Activity type
Research Organisations
EU contribution
€ 571 500
Administrative Contact
Christine Zöllter (Ms.)

Participants (16)

SAFRAN AIRCRAFT ENGINES
France
EU contribution
€ 187 957
Address
Bvd Du General Martial Valin 2
75015 Paris
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Patrick Houel (Mr.)
ROLLS-ROYCE PLC
United Kingdom
EU contribution
€ 169 000
Address
Kings Place 90 York Way
N1 9FX London
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
David Bone (Mr.)
AIRBUS DEFENCE AND SPACE GMBH
Germany
EU contribution
€ 266 779
Address
Willy-messerschmitt-strasse 1
82024 Taufkirchen
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Peter Lilischkis (Mr.)
MTU AERO ENGINES GMBH
Germany
EU contribution
€ 195 300
Address
Dachauer Strasse, 665
80995 Muenchen
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Stephan Servaty (Mr.)
GKN AEROSPACE SWEDEN AB
Sweden
EU contribution
€ 177 000
Address
-
46181 Trollhaettan
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Mattias Billson (Dr.)
AVIO SPA
Italy
EU contribution
€ 95 500
Address
Via Antonio Salandra N18
00187 Roma
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Massimo Negro (Dr.)
OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES
France
EU contribution
€ 341 500
Address
Chemin De La Huniere
91120 Palaiseau
Activity type
Research Organisations
Administrative Contact
Jean-Michel Goulon (Mr.)
UNIVERSITY OF SOUTHAMPTON
United Kingdom
EU contribution
€ 267 000
Address
Highfield
SO17 1BJ Southampton
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Jonathan Charles Barnes (Mr.)
ECOLE CENTRALE DE LYON
France
EU contribution
€ 304 000
Address
Avenue Guy De Collongue 36
69134 Ecully
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Bénédicte Martin (Dr.)
UNIVERSITAET SIEGEN
Germany
EU contribution
€ 137 000
Address
Adolf Reichwein Strasse 2A
57076 Siegen
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Heinz Ahlers (Mr.)
FLUOREM
France
EU contribution
€ 227 000
Address
Chemin De Mouilles 64
69130 Ecully
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Lionel Gamet (Dr.)
CHALMERS TEKNISKA HOEGSKOLA AB
Sweden
EU contribution
€ 150 000
Address
-
41296 Goeteborg
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Katarina Ekman (Ms.)
TECHNISCHE UNIVERSITAT BERLIN
Germany
EU contribution
€ 182 000
Address
Strasse Des 17 Juni 135
10623 Berlin
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Roswitha Koskinas (Ms.)
STICHTING NATIONAAL LUCHT- EN RUIMTEVAARTLABORATORIUM
Netherlands
EU contribution
€ 92 000
Address
Anthony Fokkerweg 2
1059CM Amsterdam
Activity type
Research Organisations
Administrative Contact
P. Van Der Veen (Mr.)
MICROFLOWN TECHNOLOGIES BV
Netherlands
EU contribution
€ 122 000
Address
Tivolilaan 205
6824 BV Arnhem
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Hans-Elias De Bree (Dr.)
SANDU M. CONSTANTIN PERSOANA FIZICA
Romania
EU contribution
€ 77 000
Address
Ripiceni Str 6 A Bloc 5 Sc A Apt 40
023 624 Bucuresti
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
Administrative Contact
Constantin Sandu (Mr.)