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http://bura.brunel.ac.uk/handle/2438/23570| Title: | Aerodynamic and aeroacoustic optimization of leading-edge undulation of a NACA 65(12)-10 aerofoil |
| Other Titles: | Aerodynamic and aeroacoustic optimisation of leading-edge undulation of a NACA 65(12)-10 aerofoil |
| Authors: | Kim, J-H Choi, K-S Lacagnina, G Chaitanya, P Joseph, P Hasheminejad, SM Chong, TP Shahab, MF Omidyeganeh, M Pinelli, A |
| Keywords: | symmetric airfoil;aerodynamic performance;aerodynamic characteristics;particle image velocimetry;boundary layer transition;mean camber line;freestream turbulence;aspect ratio |
| Issue Date: | 22-Nov-2021 |
| Publisher: | American Institute of Aeronautics and Astronautics |
| Citation: | Kim, J.-H. et al. (2021) 'Aerodynamic and aeroacoustic optimization of leading-edge undulation of a NACA 65(12)-10 aerofoil', AIAA Journal: devoted to aerospace research and development, 60 (4), pp. 2342 - 2353. doi: 10.2514/1.J060716. |
| Abstract: | Experimental studies of a NACA 65(12)-10 airfoil with a sinusoidal leading-edge undulation (LEU) were carried out to simultaneously optimize its aerodynamic and aeroacoustic performances by considering the attached as well as the separated flow at the effective Reynolds number of 106, where the maximum lift was increased without sacrificing drag or overall noise at near- and poststall angles. Further aerodynamic and aeroacoustic tests indicated that a combination of LEU wavelength λ/c=30% and amplitude h/c=6% gave an optimum LEU by considering the aerodynamic performance as well as the noise reduction. Particle image velocimetry measurements of the flow over the optimized airfoil showed biperiodic velocity fluctuations downstream of the LEU peaks that were associated with unsteady stall cell structure near the trailing edge. |
| Description: | 2021-03-J060716.R1. Some of the materials in this paper has been presented at 23rd International Congress on Acoustics, Aachen, Germany, 9-13 September 2019. |
| URI: | https://bura.brunel.ac.uk/handle/2438/23570 |
| DOI: | https://doi.org/10.2514/1.J060716 |
| ISSN: | 0001-1452 |
| Other Identifiers: | ORCiD: Kwing-So Choi https://orcid.org/0000-0002-8383-8057 ORCiD: Giovanni Lacagnina https://orcid.org/0000-0002-8038-1127 ORCiD: Tze Pei Chong https://orcid.org/0000-0002-5272-3943 |
| Appears in Collections: | Dept of Mechanical and Aerospace Engineering Research Papers |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| FullText.pdf | This is the accepted manuscript version of an article which has been published in final form on AIAA Electronic Library, Published online Open Access 17 November 2021 on AIAA Electronic Library at https://doi.org/10.2514/1.J060716, Copyright © 2021 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved. Author accepted manuscript self-archived with permission of the AIAA per https://www.aiaa.org/publications/Open-Access. All requests for copying and permission to reprint should be submitted to CCC at https://www.copyright.com; employ the eISSN 1533-385X to initiate your request. See also AIAA Rights and Permissions: https://www.aiaa.org/randp. | 5.35 MB | Adobe PDF | View/Open |
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