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VALidation and Improvement of Airframe Noise prediction Tools

VALidation and Improvement of Airframe Noise prediction Tools

Objective

Broadband noise generated by the turbulent flow around the airframe is one of the most important components of aircraft generated acoustic nuisances. Its prediction and subsequent reduction is essential for achieving the ACARE 2020 objectives of noise level reductions. However, the complexity and diversity of broadband turbulent noise sources makes that prediction with present numerical tools extremely challenging and far from mature. VALIANT is an upstream research-oriented project, with objective to tackle this challenge by generating new experimental data and validating and improving numerical tools for prediction of airframe noise (AFN) generated from landing gears, slats, flaps and local separation regions. Due to the extremely complex physical nature of the phenomenon and the high computational cost of computing full aircraft configurations on one hand, and a lack of a reliable experimental database on the other hand, VALIANT focuses on key generic test cases representing the major broadband AFN mechanisms associated with multiple body interactions: two-struts (landing gear), wing-flap, slat-wing and gap-turbulence. For all these configurations, the components of the noise prediction chain (for turbulent/source region, near- and far-field propagation domains) and their mutual interactions are evaluated and avenues of improvement developed. It is expected that by validating and improving the predictive tools, a deeper insight into the mechanisms behind AFN will be obtained, which is an essential step towards new efficient AFN reduction concepts and their optimization to achieve the required breakthrough towards quieter aircraft. The consortium is formed by 12 European and Russian partners: 2 universities and 7 research establishments including the most important technology providers to airframe industry, and 3 companies (2 SME) providing dedicated engineering services and software tools in aeroacoustics to transport industries with emphasis on aeronautics.

Coordinator

INSTITUT VON KARMAN DE DYNAMIQUE DES FLUIDES

Address

Chaussee De Waterloo 72
1640 Rhode Saint Genese

Belgium

Activity type

Higher or Secondary Education Establishments

EU Contribution

€ 512 224

Administrative Contact

Christophe Schram (Prof.)

Participants (12)

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KELDYSH INSTITUTE OF APPLIED MATHEMATICS OF THE RUSSIAN ACADEMY OF SCIENCES

Russia

EU Contribution

€ 135 000

ECOLE CENTRALE DE LYON

France

EU Contribution

€ 171 446,25

TECHNISCHE UNIVERSITAT BERLIN

Germany

EU Contribution

€ 224 414,25

OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES

France

EU Contribution

€ 315 502,75

FEDERAL STATE UNITARY ENTERPRISE THE CENTRAL AEROHYDRODYNAMIC INSTITUTE NAMED AFTER PROF. N.E. ZHUKOVSKY

Russia

EU Contribution

€ 131 812,50

STICHTING NATIONAAL LUCHT- EN RUIMTEVAARTLABORATORIUM

Netherlands

EU Contribution

€ 176 813,25

DLR

Germany

EU Contribution

€ 272 212,50

CENTRE INTERNACIONAL DE METODES NUMERICS EN ENGINYERIA

Spain

EU Contribution

€ 168 997,50

NEW TECHNOLOGIES AND SERVICES LLC

Russia

EU Contribution

€ 166 647

NUMERICAL MECHANICS APPLICATIONS INTERNATIONAL SA

Belgium

EU Contribution

€ 253 434

SIEMENS INDUSTRY SOFTWARE NV

Belgium

EU Contribution

€ 171 496

INSTITUTE FOR MATHEMATICAL MODELLING OF RUSSIAN ACADEMY OF SCIENCES

Russia

Project information

Grant agreement ID: 233680

Status

Closed project

  • Start date

    1 September 2009

  • End date

    31 May 2013

Funded under:

FP7-TRANSPORT

  • Overall budget:

    € 3 721 682,65

  • EU contribution

    € 2 700 000

Coordinated by:

INSTITUT VON KARMAN DE DYNAMIQUE DES FLUIDES

Belgium