Aiaa Aviation 2020 Forum 2020
DOI: 10.2514/6.2020-2545
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Stochastic computational model of 3D acoustic noise predictions for nacelle liners

Abstract: This paper is devoted to the uncertainty quantification for 3D acoustic performance model of nacelle liners (acoustic treatments). Uncertainties are taken into account in order to increase the robustness of the predictions. A full computational acoustic propagation model based on the convected Helmholtz equation in presence of a non-homogeneous flow velocity field computed by solving the Linearized Euler Equations (LEE) is used. A reduced-order computational model is deduced in order to implement the probabili… Show more

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