DC Field | Value | Language |
---|---|---|
dc.contributor.author | Addo-Akoto, Reynolds | ko |
dc.contributor.author | Yang, Hyeon-Ho | ko |
dc.contributor.author | Han, Jong-Seob | ko |
dc.contributor.author | Han, Jae-Hung | ko |
dc.date.accessioned | 2023-11-30T06:00:14Z | - |
dc.date.available | 2023-11-30T06:00:14Z | - |
dc.date.created | 2023-11-30 | - |
dc.date.created | 2023-11-30 | - |
dc.date.issued | 2023-11 | - |
dc.identifier.citation | JOURNAL OF FLUIDS AND STRUCTURES, v.123 | - |
dc.identifier.issn | 0889-9746 | - |
dc.identifier.uri | http://hdl.handle.net/10203/315491 | - |
dc.description.abstract | Uniform downwash of a revolving or flapping wing is a key indicator of aerodynamic efficiency. Although the slack-angle of flexible wings can significantly alter the downwash due to the inherent aerodynamic twist, its effect on the downwash distribution for a change in planform remains unknown. In this study, the effect of wing flexibility (slack-angle β) on the unsteady aerodynamic characteristics is investigated using three wing planforms. The study reveals that ββ > 5° can suppress the wing planform effect, leading to the generation of the same amount of lift at mid-stroke. To emphasize on the role of wing flexibility, further comparisons are made with rigid cases for each change in planform. A change in planform for the rigid cases significantly affects the position of the tip vortices (TiVs). But, the TiV positions of the flexible wings remained unchanged, helping to generate a wider downwash area to enhance the lift in contrast to that of the rigid-wing counterparts. The study found that the flexible and rigid wings can generate two distinct downwash patterns, which are respectively near uniform and tip-oriented, during the flapping motion. The ability of the flexible wings to sustain the wider near uniform downwash irrespective of the selected planform is paramount for enhanced aerodynamic performance. | - |
dc.language | English | - |
dc.publisher | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD | - |
dc.title | Wing flexibility effect on aerodynamic performance of different flapping wing planforms | - |
dc.type | Article | - |
dc.identifier.wosid | 001108911900001 | - |
dc.identifier.scopusid | 2-s2.0-85175461483 | - |
dc.type.rims | ART | - |
dc.citation.volume | 123 | - |
dc.citation.publicationname | JOURNAL OF FLUIDS AND STRUCTURES | - |
dc.identifier.doi | 10.1016/j.jfluidstructs.2023.104006 | - |
dc.contributor.localauthor | Han, Jae-Hung | - |
dc.contributor.nonIdAuthor | Han, Jong-Seob | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Flapping -wing aerodynamics | - |
dc.subject.keywordAuthor | Flexible wing | - |
dc.subject.keywordAuthor | Cambered wing | - |
dc.subject.keywordAuthor | Low -aspect -ratio wing | - |
dc.subject.keywordAuthor | Leading -edge vortex | - |
dc.subject.keywordAuthor | Downwash | - |
dc.subject.keywordPlus | LEADING-EDGE VORTICES | - |
dc.subject.keywordPlus | FORCES | - |
dc.subject.keywordPlus | FLIGHT | - |
dc.subject.keywordPlus | MODEL | - |
dc.subject.keywordPlus | DEFORMATION | - |
dc.subject.keywordPlus | ROTATION | - |
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