Experimental manipulation of wall turbulence: a systems approach
Experimental manipulation of wall turbulence: a systems approach
复制标题
DOI：
10.1063/1.4793444
复制
发表时间：
2013-03
影响因子：
4.6
通讯作者：
B. McKeon;Ati S. Sharma;I. Jacobi
中科院分区：
文献类型：
--
作者：
B. McKeon;Ati S. Sharma;I. Jacobi
我们根据 McKeon 和 Sharma 提出的方法回顾了最近的进展 [J.流体机械。 658, 336–382 (2010)10.1017/S002211201000176X]，了解和控制壁面湍流。这种分析的起源部分在于非线性鲁棒控制理论，但一个区别特征是与对真实高雷诺数流中观察到的速度统计和相干结构的最先进理解的联系和预测。该工作的一个关键组成部分是通过使用非理想但实用的壁驱动理论预测的速度响应模式的激励的实验演示。概述了该方法的局限性和未来发展的有希望的方向。
We review recent progress, based on the approach introduced by McKeon and Sharma [J. Fluid Mech. 658, 336–382 (2010)10.1017/S002211201000176X], in understanding and controlling wall turbulence. The origins of this analysis partly lie in nonlinear robust control theory, but a differentiating feature is the connection with, and prediction of, state-of-the-art understanding of velocity statistics and coherent structures observed in real, high Reynolds number flows. A key component of this line of work is an experimental demonstration of the excitation of velocity response modes predicted by the theory using non-ideal, but practical, actuation at the wall. Limitations of the approach and promising directions for future development are outlined.