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Numerical and Experimental Assessment of the Linflap Technology for Regional Aircraft Noise Reduction

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Flinovia—Flow Induced Noise and Vibration Issues and Aspects-II (FLINOVIA 2017)

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Abstract

Within Green Regional Aircraft (GRA), a JTI Integrated Technology Development (ITD) program, an acoustically treated flap (called lined-flap), has been assessed. The design of such a lined-flap, conceived as a low-noise high-lift device, has been optimized through a suitable evolutionary algorithm that refers to an acoustic finite element (FE) model. An original turbulent empirical model has been implemented to estimate the noise, generated by the trailing edge and scattered by the wing body. A semiempirical model has instead supported the design process, relating the acoustic impedance to structural and materials properties. The capability of the proposed system has been finally checked within devoted wind tunnel test experiments.

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References

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Acknowledgements

This work was carried out in the framework of Green Regional Aircraft funded by Clean Sky Programme.

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Authors and Affiliations

  1. Aeronautics Environmental Impact Division, The Italian Aerospace Research Center, CIRA SCpA, Capua (CE), Italy

    Mattia Barbarino

  2. Adaptive Structures Division, The Italian Aerospace Research Center, CIRA SCpA, Capua (CE), Italy

    Ignazio Dimino & Antonio Concilio

Authors
  1. Mattia Barbarino
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  2. Ignazio Dimino
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  3. Antonio Concilio
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Contributions

In this paper, M. Barbarino was involved in the development of the lined concept and its numerical simulation. I. Dimino carried out the wind tunnel tests aimed at verifying the performance of the proposed device. A. Concilio formulated an evaluation of the achievements and proposed further objectives of the research.

Corresponding author

Correspondence to Mattia Barbarino .

Editor information

Editors and Affiliations

  1. Department of Energy and Transportation—I, INSEAN-C, National Research Council, Rome, Italy

    Elena Ciappi

  2. Dipartimento di Ingegneria Industriale, Università degli Studi di Napoli “Federico II”, Naples, Italy

    Sergio De Rosa

  3. Dipartimento di Ingegneria Industriale, Università degli Studi di Napoli “Federico II”, Naples, Italy

    Francesco Franco

  4. Laboratoire Vibrations Acoustique, National Institute of Applied Sciences of Lyon, Villeurbanne, France

    Jean-Louis Guyader

  5. Center for Acoustics and Vibrations, ARL/Penn State, State College, Pennsylvania, USA

    Stephen A. Hambric

  6. Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong

    Randolph Chi Kin Leung

  7. Center for Acoustics and Vibrations, ARL/Penn State, State College, Pennsylvania, USA

    Amanda D. Hanford

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Barbarino, M., Dimino, I., Concilio, A. (2019). Numerical and Experimental Assessment of the Linflap Technology for Regional Aircraft Noise Reduction. In: Ciappi, E., et al. Flinovia—Flow Induced Noise and Vibration Issues and Aspects-II. FLINOVIA 2017. Springer, Cham. https://doi.org/10.1007/978-3-319-76780-2_9

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  • DOI: https://doi.org/10.1007/978-3-319-76780-2_9

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-76779-6

  • Online ISBN: 978-3-319-76780-2

  • eBook Packages: EngineeringEngineering (R0)

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