کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
826707 | 907946 | 2013 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Two- and Three-Dimensional Simulations of Beetle Hind Wing Flapping during Free Forward Flight
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی پزشکی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Two- and Three-Dimensional Simulations of Beetle Hind Wing Flapping during Free Forward Flight Two- and Three-Dimensional Simulations of Beetle Hind Wing Flapping during Free Forward Flight](/preview/png/826707.png)
چکیده انگلیسی
Aerodynamic characteristic of the beetle, Trypoxylus dichotomus, which has a pair of elytra (forewings) and hind wings, is numerically investigated. Based on the experimental results of wing kinematics, two-dimensional (2D) and three-dimensional (3D) computational fluid dynamic simulations were carried out to reveal aerodynamic performance of the hind wing. The roles of the spiral Leading Edge Vortex (LEV) and the spanwise flow were clarified by comparing 2D and 3D simulations. Mainly due to pitching down of chord line during downstroke in highly inclined stroke plane, relatively high averaged thrust was produced in the free forward flight of the beetle. The effects of the local corrugation and the camber variation were also investigated for the beetle's hind wings. Our results show that the camber variation plays a significant role in improving both lift and thrust in the flapping. On the other hand, the local corrugation pattern has no significant effect on the aerodynamic force due to large angle of attack during flapping.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Bionic Engineering - Volume 10, Issue 3, July 2013, Pages 316-328
Journal: Journal of Bionic Engineering - Volume 10, Issue 3, July 2013, Pages 316-328
نویسندگان
Tuyen Quang Le, Tien Van Truong, Hieu Trung Tran, Soo Hyung Park, Jin Hwan Ko, Hoon Cheol Park, Kwang Joon Yoon, Doyoung Byun,