On the significance of form-induced stress in rough wall turbulent boundary layers
On the significance of form-induced stress in rough wall turbulent boundary layers
复制标题
粗糙壁湍流边界层中形状诱发应力的意义
DOI：
10.2478/s11600-008-0021-2
复制
发表时间：
2008
期刊：
影响因子：
2.3
通讯作者：
I. McEwan
中科院分区：
文献类型：
--
作者：
C. Manes;D. Pokrajac;O. Coceal;I. McEwan
本文综述了粗糙壁湍流边界层中形状诱导应力的实验和数值研究。本文的目的是评估这种应力的重要性，为各种粗糙的壁面几何形状和流动条件。形状引起的应力的意义的分析，首先进行比较其大小与雷诺应力的大小在文献中提供的每个数据集。然后，通过选择一组特殊的数据，我们分析了两个应力梯度之间的比较。我们指出，应力梯度的比较给出了一个不同的角度粗糙壁边界层中的形状诱导应力的作用。
This paper presents a review of recent experimental and numerical studies which deal with the analysis of form-induced stress in rough wall turbulent boundary layers. The aim of the paper is to assess the importance of this stress for various rough wall geometries and flow conditions. Analysis of the significance of form-induced stress is first performed by comparing its magnitude with the magnitude of Reynolds stress for each data set available in literature. Then, by selecting a special set of data, we analyze the comparison between the gradients of both stresses. We point out that the comparison of stress gradients gives a different perspective on the role of form-induced stress in rough wall boundary layers.