Experimental investigation of plain- and flapped-wing tip vortices
Particle image velocimetry was used in a low-speed wind tunnel to investigate and characterize wing tip vortex structures. A rectangular wing of a subsonic wall interference model was used as a vortex generator in two different configurations: 1) plain wing and 2) flapped wing with the trailing-ed...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English English |
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http://www.aiaa.org/IframeTwoColumn.aspx?id=4739
2009
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/12782/ http://irep.iium.edu.my/12782/1/Experimental_investigation_of_plain-_And_flapped-wing_tip_vortices.pdf http://irep.iium.edu.my/12782/4/Experimental_investigation_Waqar.pdf |
| _version_ | 1848777474957115392 |
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| author | Elsayed, Omer Ali Asrar, Waqar Omar, Ashraf A. Kwon, Kijung Jung, Hyejin |
| author_facet | Elsayed, Omer Ali Asrar, Waqar Omar, Ashraf A. Kwon, Kijung Jung, Hyejin |
| author_sort | Elsayed, Omer Ali |
| building | IIUM Repository |
| collection | Online Access |
| description | Particle image velocimetry was used in a low-speed wind tunnel to investigate and characterize wing tip vortex
structures. A rectangular wing of a subsonic wall interference model was used as a vortex generator in two different
configurations: 1) plain wing and 2) flapped wing with the trailing-edge flap extended at 20 degrees. Vortex flow
quantities and their dependence on angle of attack at Reynolds numbers of 32:8 � 103 and 43:8 � 103 were evaluated.
Assessment of measured data reveals that the peak values of tangential velocities, vortex strength, and vorticities are
directly proportional to the angle of attack. The vortex core radius value grows slowly as the angle of attack is
increased. Both plain and flapped configurations showed similar trends. The peak tangential velocities and
circulation almost doubled when the flapped configuration was used instead of the plain wing. |
| first_indexed | 2025-11-14T14:46:34Z |
| format | Article |
| id | iium-12782 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-14T14:46:34Z |
| publishDate | 2009 |
| publisher | http://www.aiaa.org/IframeTwoColumn.aspx?id=4739 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-127822012-05-17T10:26:57Z http://irep.iium.edu.my/12782/ Experimental investigation of plain- and flapped-wing tip vortices Elsayed, Omer Ali Asrar, Waqar Omar, Ashraf A. Kwon, Kijung Jung, Hyejin TJ Mechanical engineering and machinery Particle image velocimetry was used in a low-speed wind tunnel to investigate and characterize wing tip vortex structures. A rectangular wing of a subsonic wall interference model was used as a vortex generator in two different configurations: 1) plain wing and 2) flapped wing with the trailing-edge flap extended at 20 degrees. Vortex flow quantities and their dependence on angle of attack at Reynolds numbers of 32:8 � 103 and 43:8 � 103 were evaluated. Assessment of measured data reveals that the peak values of tangential velocities, vortex strength, and vorticities are directly proportional to the angle of attack. The vortex core radius value grows slowly as the angle of attack is increased. Both plain and flapped configurations showed similar trends. The peak tangential velocities and circulation almost doubled when the flapped configuration was used instead of the plain wing. http://www.aiaa.org/IframeTwoColumn.aspx?id=4739 2009-01 Article PeerReviewed application/pdf en http://irep.iium.edu.my/12782/1/Experimental_investigation_of_plain-_And_flapped-wing_tip_vortices.pdf application/pdf en http://irep.iium.edu.my/12782/4/Experimental_investigation_Waqar.pdf Elsayed, Omer Ali and Asrar, Waqar and Omar, Ashraf A. and Kwon, Kijung and Jung, Hyejin (2009) Experimental investigation of plain- and flapped-wing tip vortices. Journal of Aircraft, 46 (1). pp. 254-262. ISSN 0021-8669 http://dx.doi.org/10.2514/1.38217 doi:10.2514/1.38217 |
| spellingShingle | TJ Mechanical engineering and machinery Elsayed, Omer Ali Asrar, Waqar Omar, Ashraf A. Kwon, Kijung Jung, Hyejin Experimental investigation of plain- and flapped-wing tip vortices |
| title | Experimental investigation of plain- and flapped-wing tip vortices |
| title_full | Experimental investigation of plain- and flapped-wing tip vortices |
| title_fullStr | Experimental investigation of plain- and flapped-wing tip vortices |
| title_full_unstemmed | Experimental investigation of plain- and flapped-wing tip vortices |
| title_short | Experimental investigation of plain- and flapped-wing tip vortices |
| title_sort | experimental investigation of plain- and flapped-wing tip vortices |
| topic | TJ Mechanical engineering and machinery |
| url | http://irep.iium.edu.my/12782/ http://irep.iium.edu.my/12782/ http://irep.iium.edu.my/12782/ http://irep.iium.edu.my/12782/1/Experimental_investigation_of_plain-_And_flapped-wing_tip_vortices.pdf http://irep.iium.edu.my/12782/4/Experimental_investigation_Waqar.pdf |