C. Valente, C. Wales, D. Jones, A. Gaitonde, J. E. Cooper, Y. Lemmens

DOI Number: N/A

Conference number: IFASD-2017-200

This paper presents an efficient correction technique for doublet-lattice method, where linearized frequency domain analysis have been used to compute the aerodynamic data for the corrections. This substantially reduces the computational cost necessary to define the corrected Aerodynamic Interference Coefficients matrices. The results obtained from the corrected doublet-lattice method are compared to the fully coupled CFD/FEM solution performed using the Alpes Fluid Structure Interaction Interface. The application of this method to two test cases, representative of civil jet airliner in cruise condition, in transonic regime, is presented. The first test case is an Euler simulation for the FFAST right wing model, while the second presents preliminary results obtained using a viscous simulation for the NASA common research model. The aeroelastic loads analysis for three different gust lengths, as prescribed by the CS-25, are presented and discussed.

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In Categories: 1. IFASD 2017, 1.Events, Computational Aeroelasticity
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