期刊
JOURNAL OF FLUID MECHANICS
卷 673, 期 -, 页码 180-217出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0022112010006324
关键词
boundary layers; boundary layer structure; turbulent boundary layers
Experimental measurements of the three-dimensional (3D) velocity field in a moderate Reynolds number zero pressure-gradient boundary layer are presented. The measurements are analysed to produce 3D correlations and conditional averaging techniques are used to further elucidate the underlying structure. The results show clear evidence of vortex-packet-type structures and shed new light on the detailed 3D structure of such packets in a real zero pressure-gradient boundary layer.
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