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The Impact of Distorted Inflow on a Centrifugal Fan Noise

Dominique, Joachim ; Ailloud, Fabrice ; Cheriaux, Olivier ; Henner, Manuel ; Christophe, Julien ; Schram, Christophe (2022):
The Impact of Distorted Inflow on a Centrifugal Fan Noise. (Publisher's Version)
Darmstadt, FAN 2022 – International Conference on Fan Noise, Aerodynamics, Applications and Systems, Senlis, Frankreich, 27.06.-29.06.2022, DOI: 10.26083/tuprints-00021727,
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Item Type: Conference or Workshop Item
Status: Publisher's Version
Title: The Impact of Distorted Inflow on a Centrifugal Fan Noise
Language: English
Abstract:

Small ducted fans in HVAC applications are often affected by their integration within the final product. The flow and operating conditions induced by the fan working environment significantly impact its noise emission and aerodynamic performances. This paper presents a combined numerical/experimental approach using LES simulations and multi-ports measurements to investigate such installation effects for a centrifugal fan subjected to distorted inflow conditions. We observe that the distortion increases the fan broadband noise while suppressing its tonal emissions and we attribute those changes to the lack of constructive interference between individuals blades' forces in distorted inflows.

Place of Publication: Darmstadt
Collation: 10 Seiten
Classification DDC: 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften
Divisions: 16 Department of Mechanical Engineering
Event Title: FAN 2022 – International Conference on Fan Noise, Aerodynamics, Applications and Systems
Event Location: Senlis, Frankreich
Event Dates: 27.06.-29.06.2022
Date Deposited: 29 Jul 2022 12:14
Last Modified: 02 Aug 2022 08:38
DOI: 10.26083/tuprints-00021727
URN: urn:nbn:de:tuda-tuprints-217279
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/21727
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