多孔介质壁面的可渗透性加强了界面附近的动量和能量输运, 增加了多孔介质壁面湍流边界层中流动的复杂性. 多孔介质壁面直接影响着湍流边界层中的湍流结构时空演化及各种物理量的生成机制和输运特性. 本工作总结了多孔介质壁面湍流边界层统计特性和湍流结构特性的最新研究进展. 首先, 概述了多孔介质基底特性对边界层湍流特性的影响, 包括对平均统计量、壁面摩擦因数和湍流结构的研究, 指出多孔壁面湍流边界层的结构特性与开尔文-亥姆霍兹 (Kelvin-Helmholtz, KH) 不稳定性密切相关; 其次, 总结了多孔介质边界层中大尺度湍流结构对近壁区小尺度湍流结构的调制作用; 最后, 给出了该领域的未来研究方向.

The permeability of porous media wall enhances the momentum and energy transport near the interface, leading to the increase of complexity of flow in the turbulent boundary layer over porous media wall. The porous media wall affects the space-time evolution of turbulent structure directly, generation mechanism and transport characteristics of various physical quantities in the turbulent boundary layer. This paper summarizes the state of the art of statistical and turbulent structure characteristics of boundary layers over porous media wall. Firstly, the properties of porous media substrates have a direct relationship with turbulent boundary layer characteristics, as demonstrated by mean statistical quantum, the wall friction coefficient and characteristics of coherent structures. The structure characteristics of turbulent in the turbulent boundary layer over porous walls are closely related to the Kelvin-Helmholtz (KH) instability induced by porous media. Secondly, the paper discusses the modulation effect of large-scale turbulent structures on small-scale turbulent structures near wall region in porous wall boundary layers. Finally, we outline future research directions.