Span load modification via differential spoiler setting
The serious impact of the wing tips vortices of a large aircraft is well known. There are many examples of the damage caused to following aircraft caught up in the rotational wake shed from an upstream craft. Topology of the wake vortices downstream of the configuration will largely depends on the s...
| Main Authors: | , , |
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| Format: | Proceeding Paper |
| Language: | English |
| Published: |
2010
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/2386/1/SPAN_LOAD_MODIFICATION_VIA_DIFFERENTIAL_SPOILER_SETTING.pdf |
| _version_ | 1825644307563937792 |
|---|---|
| author | Elsayed, Omer Ali Asrar, Waqar Omar, Ashraf Ali |
| author_facet | Elsayed, Omer Ali Asrar, Waqar Omar, Ashraf Ali |
| author_sort | Elsayed, Omer Ali |
| collection | IIUM |
| description | The serious impact of the wing tips vortices of a large aircraft is well known. There are many examples of the damage caused to following aircraft caught up in the rotational wake shed from an upstream craft. Topology of the wake vortices downstream of the configuration will largely depends on the span wise load distribution. In order to measure the span load distribution on the wing, a wake integration technique based on the control volume approach was used. The half aircraft model was tested at high lift configuration as well as at various differential spoiler settings (DSS’s). Particle image velocimetry (PIV) was used to measure the cross flow velocities downstream the model at IIUM low speed wind tunnel. Results reveals a noticeable inboard shift of wing loading for deflected spoiler numbers 5 and 6 at 30o and 40o with jumps in the span load distribution as an indication for the strength of individual vortices (wing/flap vortices). Deflecting spoiler numbers 1 at 10o results in a mild outboard load shifting while deflected spoilers numbers 2,3,4,5and 6 at 5o results in a drop of lift distribution in the area of the deflected spoilers with no load shifting observed. Finally spoiler’s proves to be capable of altering the span load distribution with a reasonable pay off price in term of lift loss. |
| first_indexed | 2024-03-05T22:30:56Z |
| format | Proceeding Paper |
| id | oai:generic.eprints.org:2386 |
| institution | International Islamic University Malaysia |
| language | English |
| last_indexed | 2024-03-05T22:30:56Z |
| publishDate | 2010 |
| record_format | dspace |
| spelling | oai:generic.eprints.org:23862011-11-14T01:31:14Z http://irep.iium.edu.my/2386/ Span load modification via differential spoiler setting Elsayed, Omer Ali Asrar, Waqar Omar, Ashraf Ali TL500 Aeronautics The serious impact of the wing tips vortices of a large aircraft is well known. There are many examples of the damage caused to following aircraft caught up in the rotational wake shed from an upstream craft. Topology of the wake vortices downstream of the configuration will largely depends on the span wise load distribution. In order to measure the span load distribution on the wing, a wake integration technique based on the control volume approach was used. The half aircraft model was tested at high lift configuration as well as at various differential spoiler settings (DSS’s). Particle image velocimetry (PIV) was used to measure the cross flow velocities downstream the model at IIUM low speed wind tunnel. Results reveals a noticeable inboard shift of wing loading for deflected spoiler numbers 5 and 6 at 30o and 40o with jumps in the span load distribution as an indication for the strength of individual vortices (wing/flap vortices). Deflecting spoiler numbers 1 at 10o results in a mild outboard load shifting while deflected spoilers numbers 2,3,4,5and 6 at 5o results in a drop of lift distribution in the area of the deflected spoilers with no load shifting observed. Finally spoiler’s proves to be capable of altering the span load distribution with a reasonable pay off price in term of lift loss. 2010-07-28 Proceeding Paper PeerReviewed application/pdf en http://irep.iium.edu.my/2386/1/SPAN_LOAD_MODIFICATION_VIA_DIFFERENTIAL_SPOILER_SETTING.pdf Elsayed, Omer Ali and Asrar, Waqar and Omar, Ashraf Ali (2010) Span load modification via differential spoiler setting. In: 2010 RAeS Aerodynamics Conference Applied Aerodynamics: Capabilities and Future Requirements, 27-28 July 2010, Bristol, UK. |
| spellingShingle | TL500 Aeronautics Elsayed, Omer Ali Asrar, Waqar Omar, Ashraf Ali Span load modification via differential spoiler setting |
| title | Span load modification via differential spoiler setting |
| title_full | Span load modification via differential spoiler setting |
| title_fullStr | Span load modification via differential spoiler setting |
| title_full_unstemmed | Span load modification via differential spoiler setting |
| title_short | Span load modification via differential spoiler setting |
| title_sort | span load modification via differential spoiler setting |
| topic | TL500 Aeronautics |
| url | http://irep.iium.edu.my/2386/1/SPAN_LOAD_MODIFICATION_VIA_DIFFERENTIAL_SPOILER_SETTING.pdf |
| work_keys_str_mv | AT elsayedomerali spanloadmodificationviadifferentialspoilersetting AT asrarwaqar spanloadmodificationviadifferentialspoilersetting AT omarashrafali spanloadmodificationviadifferentialspoilersetting |