Numerical Investigation into Flutter and Flutter-Buffet Phenomena for a Swept Wing and a Curved Planform Wing
The results of numerical studies carried out on high-aspect-ratio wings with different planforms are discussed: the transonic regime is analysed for a swept wing and a curved planform wing. The wings have similar aspect ratios and similar aerodynamic profiles. The analyses were carried out by CFD an...
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| Format: | Article |
| Language: | English |
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Wiley
2019-01-01
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| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/2019/8210235 |
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| _version_ | 1832556111984590848 |
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| author | Mario Rosario Chiarelli Salvatore Bonomo |
| author_facet | Mario Rosario Chiarelli Salvatore Bonomo |
| author_sort | Mario Rosario Chiarelli |
| collection | DOAJ |
| description | The results of numerical studies carried out on high-aspect-ratio wings with different planforms are discussed: the transonic regime is analysed for a swept wing and a curved planform wing. The wings have similar aspect ratios and similar aerodynamic profiles. The analyses were carried out by CFD and FE techniques, and the reliability of the numerical aerodynamic results was proven by a sensitivity study. Analysing the performances of the two wings demonstrated that in transonic flight conditions, a noticeable drag reduction can be obtained by adopting a curved planform wing. In addition, for such a wing, the aeroelastic instability condition, consisting in a classical flutter, is postponed compared to a conventional swept wing, for which a flutter-buffet instability occurs. In a preliminary manner, the study shows that, for a curved planform wing, the high speed buffet is not an issue and at the same time notable fuel saving can be achieved. |
| format | Article |
| id | doaj-art-3fb0bc18d3c243bcbb8ef2f6d2bc4fbe |
| institution | Kabale University |
| issn | 1687-5966 1687-5974 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj-art-3fb0bc18d3c243bcbb8ef2f6d2bc4fbe2025-02-03T05:46:21ZengWileyInternational Journal of Aerospace Engineering1687-59661687-59742019-01-01201910.1155/2019/82102358210235Numerical Investigation into Flutter and Flutter-Buffet Phenomena for a Swept Wing and a Curved Planform WingMario Rosario Chiarelli0Salvatore Bonomo1University of Pisa, DICI, Largo Lucio Lazzarino 1, Pisa 56122, ItalyUniversity of Pisa, DICI, Largo Lucio Lazzarino 1, Pisa 56122, ItalyThe results of numerical studies carried out on high-aspect-ratio wings with different planforms are discussed: the transonic regime is analysed for a swept wing and a curved planform wing. The wings have similar aspect ratios and similar aerodynamic profiles. The analyses were carried out by CFD and FE techniques, and the reliability of the numerical aerodynamic results was proven by a sensitivity study. Analysing the performances of the two wings demonstrated that in transonic flight conditions, a noticeable drag reduction can be obtained by adopting a curved planform wing. In addition, for such a wing, the aeroelastic instability condition, consisting in a classical flutter, is postponed compared to a conventional swept wing, for which a flutter-buffet instability occurs. In a preliminary manner, the study shows that, for a curved planform wing, the high speed buffet is not an issue and at the same time notable fuel saving can be achieved.http://dx.doi.org/10.1155/2019/8210235 |
| spellingShingle | Mario Rosario Chiarelli Salvatore Bonomo Numerical Investigation into Flutter and Flutter-Buffet Phenomena for a Swept Wing and a Curved Planform Wing International Journal of Aerospace Engineering |
| title | Numerical Investigation into Flutter and Flutter-Buffet Phenomena for a Swept Wing and a Curved Planform Wing |
| title_full | Numerical Investigation into Flutter and Flutter-Buffet Phenomena for a Swept Wing and a Curved Planform Wing |
| title_fullStr | Numerical Investigation into Flutter and Flutter-Buffet Phenomena for a Swept Wing and a Curved Planform Wing |
| title_full_unstemmed | Numerical Investigation into Flutter and Flutter-Buffet Phenomena for a Swept Wing and a Curved Planform Wing |
| title_short | Numerical Investigation into Flutter and Flutter-Buffet Phenomena for a Swept Wing and a Curved Planform Wing |
| title_sort | numerical investigation into flutter and flutter buffet phenomena for a swept wing and a curved planform wing |
| url | http://dx.doi.org/10.1155/2019/8210235 |
| work_keys_str_mv | AT mariorosariochiarelli numericalinvestigationintoflutterandflutterbuffetphenomenaforasweptwingandacurvedplanformwing AT salvatorebonomo numericalinvestigationintoflutterandflutterbuffetphenomenaforasweptwingandacurvedplanformwing |