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JEt noise of high bypass RatiO eNgine: Installation, advanced Modelling and mitigatiOn

Objective

The central goal of JERONIMO is the understanding of the physical mechanisms of ultrahigh bypass ratio (UHBR) engines with a bypass ratio (BPR) larger than 12 and the related installed jet noise with potential jet-wing interaction. The aim is to reduce uncertainties in jet noise characterisation of this novel installation configuration by wind tunnel tests and predictions and being able to derive design recommendation for future UHBR Engine jet noise reduction. For the achievement of those goals, UHBR engines have to be investigated experimentally for their jet noise characteristics in the isolated and installed configuration. A consistent database will be built

at European level in the jet noise test facility at CEPRA19, applying advanced and improved measurement techniques such as far-field noise & near-field pressure measurements for noise source localization. In parallel, existing CFD-CAA simulation tools will be adapted and validated (or “used state-of-the-art” only), and the overall methodology to predict flight stream effects and complex interaction mechanisms for UHBR engine jet noise at medium and full scale will be developed. This will need an identification of the key physical

or key flow features by a detailed processing of the experiments together with numerical data for steady and unsteady flow conditions and acoustics in combination with analytical/theoretical methods, such as flow instability analysis. Innovative nozzles will also be designed regarding the UHBR architecture and assessed to reduce UHBR engine installed jet noise. Finally, recommendations in term of e.g. the relative position of nozzle/wing will be provided, the methods & data will be assessed. An evaluation for aircraft noise and a common database will be established.
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Coordinator

AIRBUS DEFENCE AND SPACE GMBH

Address

Willy-Messerschmitt-Strasse 1
82024 Taufkirchen

Germany

Activity type

Private for-profit entities (excluding Higher or Secondary Education Establishments)

EU Contribution

€ 540 131,71

Administrative Contact

Peter Lilischkis (Mr.)

Participants (12)

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AIRBUS OPERATIONS SAS

France

EU Contribution

€ 468 944,50

ROLLS-ROYCE DEUTSCHLAND LTD & CO KG

Germany

EU Contribution

€ 361 798

SAFRAN AIRCRAFT ENGINES

France

EU Contribution

€ 249 568

CENTRE EUROPEEN DE RECHERCHE ET DE FORMATION AVANCEE EN CALCUL SCIENTIFIQUE

France

EU Contribution

€ 194 974

CFD SOFTWARE - ENTWICKLUNGS- UND FORSCHUNGSGESELLSCHAFT MBH

Germany

EU Contribution

€ 369 960

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS

France

EU Contribution

€ 279 745,80

DEUTSCHES ZENTRUM FUER LUFT - UND RAUMFAHRT EV

Germany

EU Contribution

€ 667 752

INASCO HELLAS ETAIREIA EFARMOSMENON AERODIASTIMIKON EPISTIMON EE

Greece

EU Contribution

€ 125 331,74

OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES

France

EU Contribution

€ 913 255,50

THE CHANCELLOR MASTERS AND SCHOLARS OF THE UNIVERSITY OF CAMBRIDGE

United Kingdom

EU Contribution

€ 330 354

UNIVERSITA DEGLI STUDI ROMA TRE

Italy

EU Contribution

€ 72 000

UNIVERSITY OF SOUTHAMPTON

United Kingdom

EU Contribution

€ 264 999,75

Project information

Grant agreement ID: 314692

Status

Closed project

  • Start date

    1 November 2012

  • End date

    31 August 2017

Funded under:

FP7-TRANSPORT

  • Overall budget:

    € 7 361 403,40

  • EU contribution

    € 4 838 815

Coordinated by:

AIRBUS DEFENCE AND SPACE GMBH

Germany