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Bruit de raie des ventilateurs axiaux : Estimation des sources aéroacoustiques par modèles inverse et Méthodes de contrôle

Abstract : Despite the efforts made during the last decades to control noise from subsonic fans, low frequency tonal noise is still of major concern. For those frequencies, passive techniques are bulky and inefficient but active techniques are better adapted and have a great potential for a control at the source. The contributions of this PhD work are 1) the estimation of tonal aeroacoustic sources using inverse models, 2) an acoustic noise control method using a single loudspeaker and 3) an adaptive passive control method using flow control obstructions. Theoretical developments provided in the thesis are valid for subsonic axial fans and experiments were carried out for an automotive engine cooling fan.
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https://tel.archives-ouvertes.fr/tel-00162200
Contributor : Anthony Gérard <>
Submitted on : Tuesday, July 17, 2007 - 3:50:14 PM
Last modification on : Wednesday, February 10, 2021 - 10:32:06 AM
Long-term archiving on: : Thursday, April 8, 2010 - 8:12:16 PM

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  • HAL Id : tel-00162200, version 1

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Anthony Gérard. Bruit de raie des ventilateurs axiaux : Estimation des sources aéroacoustiques par modèles inverse et Méthodes de contrôle. Acoustique [physics.class-ph]. Université de Poitiers, 2006. Français. ⟨tel-00162200⟩

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