Computational study of turbulent laminar patterns in Couette flow
Computational study of turbulent laminar patterns in Couette flow
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DOI：
10.1103/physrevlett.94.014502
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发表时间：
2005-01-14
影响因子：
8.6
通讯作者：
Tuckerman, LS
中科院分区：
文献类型：
--
作者：
Barkley, D;Tuckerman, LS
利用最小流单元方法的扩展，模拟了平面Couette流动中过渡附近的湍流层流模式。计算域在两个方向上是最小的，而在第三个方向上是大的。长方向可以以任何规定的角度向流方向倾斜。发现并研究了三种模式状态：周期性、局部化和间歇性。这些结果与大宽高比实验中的观察结果非常接近。
Turbulent-laminar patterns near transition are simulated in plane Couette flow using an extension of the minimal-flow-unit methodology. Computational domains are of minimal size in two directions but large in the third. The long direction can be tilted at any prescribed angle to the streamwise direction. Three types of patterned states are found and studied: periodic, localized, and intermittent. These correspond closely to observations in large-aspect-ratio experiments.