کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
826816 | 907954 | 2012 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Flow Visualization of Rhinoceros Beetle (Trypoxylus dichotomus) in Free 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: Flow Visualization of Rhinoceros Beetle (Trypoxylus dichotomus) in Free Flight Flow Visualization of Rhinoceros Beetle (Trypoxylus dichotomus) in Free Flight](/preview/png/826816.png)
چکیده انگلیسی
Aerodynamic characteristics of the beetle, Trypoxylus dichotomus, which has a pair of elytra (forewings) and flexible hind wings, are investigated. Visualization experiments were conducted for various flight conditions of a beetle, Trypoxylus dichotomus: free, tethered, hovering, forward and climbing flights. Leading edge, trailing edge and tip vortices on both wings were observed clearly. The leading edge vortex was stable and remained on the top surface of the elytron for a wide interval during the downstroke of free forward flight. Hence, the elytron may have a considerable role in lift force generation of the beetle. In addition, we reveal a suction phenomenon between the gaps of the hind wing and the elytron in upstroke that may improve the positive lift force on the hind wing. We also found the reverse clap-fling mechanism of the T. dichotomus beetle in hovering flight. The hind wings touch together at the beginning of the upstroke. The vortex generation, shedding and interaction give a better understanding of the detailed aerodynamic mechanism of beetle flight.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Bionic Engineering - Volume 9, Issue 3, September 2012, Pages 304-314
Journal: Journal of Bionic Engineering - Volume 9, Issue 3, September 2012, Pages 304-314
نویسندگان
Tien Van Truong, Tuyen Quang Le, Hieu Trung Tran, Hoon Cheol Park, Kwang Joon Yoon, Doyoung Byun,