Keywords: Ffowcs Williams–Hawkings equation
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Journal Articles
Aircraft Engineering and Aerospace Technology: An International Journal (2019) 91 (1): 30–37.
Published: 18 October 2018
... of the propeller. Then, the result of the aerodynamic analysis is given as input of the acoustic calculation. The sound is calculated using the Farassat 1A which was derived from Ffowcs WilliamsHawkings equation and is compared with the measurements. Findings Moreover, the fan is modified for noise reduction...

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