메뉴 건너뛰기




Volumn 316, Issue 5826, 2007, Pages 894-897

Bat flight generates complex aerodynamic tracks

Author keywords

[No Author keywords available]

Indexed keywords

AERODYNAMICS; BAT; FLIGHT ACTIVITY; FUNCTIONAL ROLE; MODELING; MOMENTUM TRANSFER; WING;

EID: 34248587767     PISSN: 00368075     EISSN: 10959203     Source Type: Journal    
DOI: 10.1126/science.1142281     Document Type: Article
Times cited : (209)

References (29)
  • 1
    • 34248543350 scopus 로고    scopus 로고
    • 3.
    • 3.
  • 18
    • 34248556001 scopus 로고    scopus 로고
    • O. Von Helversen, in Bot Flight, Biona Report 5, W. Nachtigall, Ed. (Gustav Fischer, Stuttgart, Germany, 1986), pp. 107-128.
    • O. Von Helversen, in Bot Flight, Biona Report 5, W. Nachtigall, Ed. (Gustav Fischer, Stuttgart, Germany, 1986), pp. 107-128.
  • 20
    • 34248540965 scopus 로고    scopus 로고
    • See supporting material on Science Online.
    • See supporting material on Science Online.
  • 21
    • 34248508782 scopus 로고    scopus 로고
    • 2/S (where b is wing span and S is wing area) is a measure of the wing shape. A high AR indicates a relatively long and slender wing, whereas a small AR signals a short and broad wing.
    • 2/S (where b is wing span and S is wing area) is a measure of the wing shape. A high AR indicates a relatively long and slender wing, whereas a small AR signals a short and broad wing.
  • 22
    • 34248504554 scopus 로고    scopus 로고
    • St = fA/U, where f is wingbeat frequency, A is tip-to-tip amplitude of the wingbeat, and U is flight speed relative to the air. St measures the relative magnitudes of wingtip and forward flight speed and can be interpreted as an indicator of the relative unsteadiness and efficiency of the vortex generation. In this study, St = 0.27 at U = 6.5 m/s, 0.37 at 4 m/s, and 0.81 at 1.5 m/s.
    • St = fA/U, where f is wingbeat frequency, A is tip-to-tip amplitude of the wingbeat, and U is flight speed relative to the air. St measures the relative magnitudes of wingtip and forward flight speed and can be interpreted as an indicator of the relative unsteadiness and efficiency of the vortex generation. In this study, St = 0.27 at U = 6.5 m/s, 0.37 at 4 m/s, and 0.81 at 1.5 m/s.
  • 25
    • 34248520550 scopus 로고    scopus 로고
    • L = 2.1, which is still considerably larger than 1.6. Furthermore, a truly local force coefficient would be based on the small local wing strip area and would be much higher.
    • L = 2.1, which is still considerably larger than 1.6. Furthermore, a truly local force coefficient would be based on the small local wing strip area and would be much higher.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.