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Aerodynamic Assessment of Pylon-Mounted Over-the-Wing Engine Installations on a STOL Commercial Aircraft Concept

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Book cover New Results in Numerical and Experimental Fluid Mechanics XI

Part of the book series: Notes on Numerical Fluid Mechanics and Multidisciplinary Design ((NNFM,volume 136))

Abstract

Aerodynamic interference effects and potential benefits of an over-the-wing mounted (OWM) engine installation are examined with CFD methods. The reference configuration is a novel transport aircraft concept with STOL capabilities. The wing/body configuration is compared to the wing/body/engine configuration with power-off nacelle. Subsequently, jet-on computations are carried out to address the influence of the jet presence on the engine/airframe interference effects. The engine is initially considered in a reference position. Successively, position variations of the engine are performed to analyze the interaction with the supersonic region and shocks on the wing upper surface. To conclude the study, a preliminary evaluation of the installation drag is done, to investigate the potential of favorable interference effects and reduced drag with respect to more conventional under-the-wing mounted (UWM) engines installations.

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References

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Acknowledgements

The authors like to acknowledge the funding of the present study by DFG as part of the Sonderforschungsbereich 880 “Grundlagen des Hochauftriebs künftiger Verkehrsflugzeuge” and Arno Ronzheimer from the Transport Aircraft Department of DLR for his valuable support.

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Authors and Affiliations

  1. DLR Institute of Aerodynamics and Flow Technology, Lilienthalplatz 7, 38108, Brunswick, Germany

    Luciana Savoni & Ralf Rudnik

Authors
  1. Luciana Savoni
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  2. Ralf Rudnik
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Corresponding author

Correspondence to Luciana Savoni .

Editor information

Editors and Affiliations

  1. Institut für Aerodynamik und Strömungstechnik, Deutsches Zentrum für Luft- und Raumfahrt, Göttingen, Germany

    Andreas Dillmann

  2. Airbus Deutschland, Bremen, Germany

    Gerd Heller

  3. Institut für Aerodynamik und Gasdynamik, Universität Stuttgart, Stuttgart, Germany

    Ewald Krämer

  4. Institut für Aerodynamik und Strömungstechnik, Deutsches Zentrum für Luft- und Raumfahrt, Göttingen, Germany

    Claus Wagner

  5. Institut für Strömungsmechanik, Technische Universität Braunschweig, Braunschweig, Germany

    Stephan Bansmer

  6. Institut für Strömungsmechanik, Technische Universität Braunschweig, Braunschweig, Germany

    Rolf Radespiel

  7. Institut für Strömungsmechanik, Technische Universität Braunschweig, Braunschweig, Germany

    Richard Semaan

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Savoni, L., Rudnik, R. (2018). Aerodynamic Assessment of Pylon-Mounted Over-the-Wing Engine Installations on a STOL Commercial Aircraft Concept. In: Dillmann, A., et al. New Results in Numerical and Experimental Fluid Mechanics XI. Notes on Numerical Fluid Mechanics and Multidisciplinary Design, vol 136. Springer, Cham. https://doi.org/10.1007/978-3-319-64519-3_5

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  • DOI: https://doi.org/10.1007/978-3-319-64519-3_5

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-64518-6

  • Online ISBN: 978-3-319-64519-3

  • eBook Packages: EngineeringEngineering (R0)

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