Turbulent spots, wave packets, and growth
Turbulent spots, wave packets, and growth
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湍流点、波包和生长
DOI：
10.1063/1.864276
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发表时间：
1983
影响因子：
4.6
通讯作者：
A. Thomas
中科院分区：
文献类型：
--
作者：
F. Chambers;A. Thomas
本文用烟丝技术研究了层流边界层中湍流斑的初始形成和发展。观察到的斑点，而不是从点发生器产生的波包的击穿，但从纵向结构之前的波包。最初的波包又被观察到最终采取斜波的形式。这些波几乎没有明显参与斑点的生长，并且似乎与可视化区域内新斑点的形成无关。
The smoke wire technique was used to initial formation and growth of turbulent spots in a laminar boundary layer. The spots were observed to result not from the breakdown of wave packets arising at the spot generator but from longitudinal structures which preceded the wave packets. The original wave packet in turn was observed to ultimately take the form of oblique waves trailing the spot. These waves had little apparent involvement in the growth of the spot and did not appear to be associated with the formation of new spots within the region visualized.