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Fluid-Structure Interaction in a Labyrinth Gas Seal Coupled to a Flexible Stator

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Topics in Modal Analysis & Testing, Volume 10

Abstract

This paper deals with the prediction of aeroelastic instabilities occuring in labyrinth gas seal of turbomachinery components. The purpose of this work is to carry out a numerical investigation on an advanced labyrinth gas seal model comprising a non-deformable rotor, and a flexible stator. The flexibility of the static part induces pressure and velocity fluctuations within the leakage flow. The model retains several cavities formed by the teeth located on the shaft and a strong coupling between the fluid and the structure is assumed.

A qualitative analysis is performed to identify the various causes of aeroelastic instability occurence. Then, a comparison with the literature is carried out in order to propose a better approach to predict such instabilities.

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References

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Acknowledgements

The authors are grateful to Airbus Safran Launchers and the Centre National d’études Spatiales for providing the financial support for this project, and for giving permission to publish this work.

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Authors and Affiliations

  1. École Centrale de Lyon, Laboratoire de Tribologie et Dynamique des Systémes, UMR-CNRS 5513, 36 avenue Guy de Collongue, 69134, Écully Cedex, France

    A. Dairien, F. Thouverez & L. Blanc

  2. Airbus Safran Launchers, Forêt de Vernon, BP802, 27208, Vernon Cedex, France

    A. Dairien & P. Héliès

  3. Centre National d’Études Spatiales, Direction des Lanceurs, 52, rue Jacques Hillairet, 75612, Paris Cedex, France

    J. Dehouve

Authors
  1. A. Dairien
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  2. F. Thouverez
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  3. L. Blanc
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  4. P. Héliès
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  5. J. Dehouve
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Corresponding author

Correspondence to A. Dairien .

Editor information

Editors and Affiliations

  1. Application Solutions - Structural Analysis, Brüel & Kjær, Cincinnati, Ohio, USA

    Michael Mains

  2. Michigan Technological University, Houghton, Michigan, USA

    J.R. Blough

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© 2017 The Society for Experimental Mechanics, Inc.

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Dairien, A., Thouverez, F., Blanc, L., Héliès, P., Dehouve, J. (2017). Fluid-Structure Interaction in a Labyrinth Gas Seal Coupled to a Flexible Stator. In: Mains, M., Blough, J. (eds) Topics in Modal Analysis & Testing, Volume 10. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-54810-4_1

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  • DOI: https://doi.org/10.1007/978-3-319-54810-4_1

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-54809-8

  • Online ISBN: 978-3-319-54810-4

  • eBook Packages: EngineeringEngineering (R0)

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