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Acoustic preliminary design of a low-noise fan stage considering a variable-area nozzle and variable-pitch rotor blades

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Bibliographic Details
Main Authors: A., Moreau, R., Schnell, M., Mennicken
Format: Book
Language:English
Published: Springer 2023
Subjects:
UHBR design
Online Access:https://link.springer.com/article/10.1007/s13272-023-00658-x
https://dlib.phenikaa-uni.edu.vn/handle/PNK/8076
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spelling oai:localhost:PNK-80762023-04-19T06:51:58Z Acoustic preliminary design of a low-noise fan stage considering a variable-area nozzle and variable-pitch rotor blades A., Moreau R., Schnell M., Mennicken UHBR design CC BY A low-noise low-pressure ultra-high-bypass-ratio fan stage to be implemented in the next generation of aircraft engines is described and evaluated acoustically with semi-empirical and analytical methods suited for preliminary design. As expected, good reduction potentials are observed for the jet noise and fan tonal noise components when the UHBR design is compared to current fans in service. However, concerns are identified for fan broadband noise, which are attributed to the off-design operation of the UHBR fan too close from its stability limit. By unloading the fan and thus reducing the size of the rotor wakes, the variable-area nozzle provides a substantial fan broadband noise reduction with a nozzle opened by around 15% from its design value. 2023-04-19T06:51:58Z 2023-04-19T06:51:58Z 2023 Book https://link.springer.com/article/10.1007/s13272-023-00658-x https://dlib.phenikaa-uni.edu.vn/handle/PNK/8076 en application/pdf Springer
institution Digital Phenikaa
collection Digital Phenikaa
language English
topic UHBR design
spellingShingle UHBR design
A., Moreau
R., Schnell
M., Mennicken
Acoustic preliminary design of a low-noise fan stage considering a variable-area nozzle and variable-pitch rotor blades
description CC BY
format Book
author A., Moreau
R., Schnell
M., Mennicken
author_facet A., Moreau
R., Schnell
M., Mennicken
author_sort A., Moreau
title Acoustic preliminary design of a low-noise fan stage considering a variable-area nozzle and variable-pitch rotor blades
title_short Acoustic preliminary design of a low-noise fan stage considering a variable-area nozzle and variable-pitch rotor blades
title_full Acoustic preliminary design of a low-noise fan stage considering a variable-area nozzle and variable-pitch rotor blades
title_fullStr Acoustic preliminary design of a low-noise fan stage considering a variable-area nozzle and variable-pitch rotor blades
title_full_unstemmed Acoustic preliminary design of a low-noise fan stage considering a variable-area nozzle and variable-pitch rotor blades
title_sort acoustic preliminary design of a low-noise fan stage considering a variable-area nozzle and variable-pitch rotor blades
publisher Springer
publishDate 2023
url https://link.springer.com/article/10.1007/s13272-023-00658-x
https://dlib.phenikaa-uni.edu.vn/handle/PNK/8076
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score 8.891053

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