A flow control mechanism in wing flapping with stroke asymmetry during insect forward flight
文献类型：期刊论文
| 作者 | Yu, YL; Tong, BG |
| 刊名 | Acta mechanica sinica
 |
| 出版日期 | 2005-06-01 |
| 卷号 | 21期号:3页码:218-227 |
| 关键词 | Insect forward flight Wine flapping Stroke asymmetry Oblique stroke plane Theoretical modeling |
| ISSN号 | 0567-7718 |
| DOI | 10.1007/s10409-005-0032-z |
| 通讯作者 | Tong, bg() |
| 英文摘要 | A theoretical modeling approach as well as an unsteady analytical method is used to study aerodynamic characteristics of wing flapping with asymmetric stroke-cycles in connection with an oblique stroke plane during insect forward flight. it is revealed that the aerodynamic asymmetry between the downstroke and the upstroke due to stroke-asymmetrical flapping is a key to understand the flow physics of generation and modulation of the lift and the thrust. predicted results for examples of given kinematics validate more specifically some viewpoints that the wing lift is more easily produced when the forward speed is higher and the thrust is harder, and the lift and the thrust are generated mainly during downstroke and upstroke, respectively. the effects of three controlling parameters, i.e. the angles of tilted stroke plane, the different downstroke duration ratios, and the different angles of attack in both down- and up-stroke, are further discussed. it is found that larger oblique angles of stroke planes generate larger thrust but smaller lift; larger downstroke duration ratios lead to larger thrust, while making little change in lift and input aerodynamic power; and again, a small increase of the angle of attack in downstroke or upstroke may cause remarkable chances in aerodynamic performance in the relevant stroke. |
| WOS关键词 | AERODYNAMIC FORCE ; DROSOPHILA ; LIFT |
| WOS研究方向 | Engineering ; Mechanics |
| WOS类目 | Engineering, Mechanical ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000230414600002 |
| 出版者 | CHINESE JOURNAL MECHANICS PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2378131 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Tong, BG |
| 作者单位 | 1.Chinese Acad Sci, Grad Sch, Dept Phys, Beijing 100039, Peoples R China 2.Univ Sci & Technol China, Dept Modern Mech, Hefei 230027, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, YL,Tong, BG. A flow control mechanism in wing flapping with stroke asymmetry during insect forward flight[J]. Acta mechanica sinica,2005,21(3):218-227. |
| APA | Yu, YL,&Tong, BG.(2005).A flow control mechanism in wing flapping with stroke asymmetry during insect forward flight.Acta mechanica sinica,21(3),218-227. |
| MLA | Yu, YL,et al."A flow control mechanism in wing flapping with stroke asymmetry during insect forward flight".Acta mechanica sinica 21.3(2005):218-227. |
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来源：中国科学院大学
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