Avian wing geometry and kinematics of a free-flying barn owl in flapping flight
Avian wing geometry and kinematics of a free-flying barn owl in flapping flight
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DOI：
10.1007/s00348-015-1898-6
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发表时间：
2015-02-01
影响因子：
2.4
通讯作者：
Konrath, Robert
中科院分区：
文献类型：
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作者：
Wolf, Thomas;Konrath, Robert
本文介绍了对自由飞行的仓鸮扑翼飞行的高分辨率三维翼形测量结果。应用测量技术与移动摄像机设置一起介绍，允许以高空间和时间分辨率调查鸟类的自由拍打飞行。基于三维曲面数据，提出了一种翼型参数化和扑翼运动参数化的方法。这允许描述沿展向变化的运动学和空气动力学参数（例如有效攻角，弧度，厚度）的翼依赖于扑动阶段。用单次飞行的数据对结果进行了详细的讨论，并对不同飞行得到的一些运动学参数进行了比较。
This paper presents results of high-resolution three-dimensional wing shape measurements performed on free-flying barn owls in flapping flight. The applied measurement technique is introduced together with a moving camera set-up, allowing for an investigation of the free flapping flight of birds with high spatial and temporal resolution. Based on the three-dimensional surface data, a methodology for parameterizing the wing profile along with wing kinematics during flapping flight has been developed. This allowed a description of the spanwise varying kinematics and aerodynamic parameters (e.g. effective angles of attack, camber, thickness) of the wing in dependence on the flapping phase. The results are discussed in detail using the data of a single flight, whereas a comparison of some kinematic parameters obtained from different flights is given too.