Peake, N and Parry, AB (2011) Modern challenges facing turbomachinery aeroacoustics. Annual Review of Fluid Mechanics, 44. pp. 227-248. ISSN 0066-4189Full text not available from this repository.
In this review we describe current scientific and technological issues in the quest to reduce aeroengine noise, in the face of predicted rapid increases in the volume of air traffic, on the one hand, and increasingly strict environmental regulation, on the other. Alongside conventional ducted turbofan designs, new open-rotor contra-rotating power plants are currently under development, which present their own noise challenges. The key sources of tonal and broadband noise, and the way in which noise propagates away from the source, are surveyed in both cases. We also consider in detail two key aspects underpinning the flow physics that continue to receive considerable attention, namely the acoustics of swirling flow and unsteady flow-blade interactions. Finally, we describe possible innovations in open-rotor engine design for low noise.
|Uncontrolled Keywords:||Noise Open rotor Propeller Turbofan|
|Divisions:||Div A > Energy|
|Depositing User:||Cron job|
|Date Deposited:||04 Feb 2015 22:07|
|Last Modified:||23 Apr 2015 01:32|