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• W4379877543 abstract "The present paper deals with an innovative multi-fidelity framework for characterizing the aerodynamics and the aeroacoustics of multirotor systems with application to advanced eVTOL aircraft. In this framework, the goal of the activity is a multi-fidelity investigation of two propellers in tandem with rotor disks overlap, reproducing a typical feature of eVTOL architectures in airplane mode flight conditions. A Ffowcs Williams–Hawkings equation solver is used to compute the aeroacoustic footprint of the test case in different configurations. The solver is run with both mid-fidelity aerodynamic simulation data obtained with DUST and high-fidelity simulation data obtained with SU2. The comparison between the two different approaches highlights the suitability of the DUST mid-fidelity simulations for the aeroacoustic investigation of a propeller in airplane mode configuration with a much lower computational cost with respect to high-fidelity CFD simulations. On the other hand, the co-axial propellers tandem configuration shows some differences in the sound pressure level computed with the two approaches, mainly due to the contribution to noise emission given by the rear propeller." @default.
• W4379877543 created "2023-06-09" @default.
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• W4379877543 date "2023-06-08" @default.
• W4379877543 modified "2023-09-23" @default.
• W4379877543 title "Multi-Fidelity Numerical Approach to Aeroacoustics of Tandem Propellers in eVTOL Airplane Mode" @default.
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• W4379877543 doi "https://doi.org/10.2514/6.2023-3221" @default.
• W4379877543 hasPublicationYear "2023" @default.
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