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 |
| Published: |
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/ 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 |
| Summary: | 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. |
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