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    Quantification of Operational and Geometrical Uncertainties of a 1.5-Stage Axial Compressor with Cavity Leakage Flows

    Quantification of Operational and Geometrical Uncertainties of a 1.5-Stage Axial Compressor with Cavity Leakage Flows


    Simultaneous operational and geometrical uncertainties are quantified on a 1.5-stage axial compressor (stator-rotor-stator) with leakage flows. The compressor geometry and operational conditions are provided by Safran Aero Boosters. Uncertainties include the mass flow rates of the leakage flows, the tip gap size of the rotor, and the correlated profiles for the main inflow conditions. In total nine uncertainties are propagated by the nonintrusive probabilistic collocation method available within FINE/Design3D. Uncertainties are quantified for the nominal design point as well as for two off-design operating points, close to stall and choke conditions, respectively. The non-deterministic response is analyzed and discussed in detail. It is shown that a sensitivity study, by means of scaled sensitivity derivatives, allows identifying the most influential uncertainties in the operation of this 1.5-stage compressor.

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    Title :

    Quantification of Operational and Geometrical Uncertainties of a 1.5-Stage Axial Compressor with Cavity Leakage Flows

    Additional title:

    Space Technol.Proceedings

    Contributors:
    Vasile, Massimiliano (editor) / Quagliarella, Domenico (editor) / Gouttière, Alexandre (author) / Wunsch, Dirk (author) / Barbieux, Virginie (author) / Hirsch, Charles (author)
    Conference:

    International Conference on Uncertainty Quantification & Optimisation ; 2020 ; Brussels, Belgium November 17, 2020 - November 20, 2020

    Published in:

    Advances in Uncertainty Quantification and Optimization Under Uncertainty with Aerospace Applications ; Chapter : 7 ; 97-107

    Space Technology Proceedings ; 8

    Publication date :

    2022-01-27

    Size :

    11 pages

    ISBN :

    978-3-030-80542-5 , 978-3-030-80541-8

    ISSN :

    1389-1766

    DOI :

    https://doi.org/10.1007/978-3-030-80542-5_7

    Type of media :

    Article/Chapter (Book)

    Type of material :

    Electronic Resource

    Language :

    English

    Keywords :

    Uncertainty quantification (UQ) , Turbomachinery , Leakage flow , Sensitivity analysis Engineering , Aerospace Technology and Astronautics , Astronomy, Astrophysics and Cosmology , Optimization , Physics and Astronomy

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