Certain surfaces that exhibit small textured features can interact with near-wall turbulence
and reduce drag, which is of great interest to industries in the aerospace, naval, transport …

Natural and engineered surfaces are never smooth, but irregular, rough at different scales,
compliant, possibly porous, liquid impregnated or superhydrophobic. The correct numerical …

The effect of the variations of the permeability tensor on the close-to-the-wall behaviour of a
turbulent channel flow bounded by porous walls is explored using a set of direct numerical …

We explore the ability of anisotropic permeable substrates to reduce turbulent skin friction,
studying the influence that these substrates have on the overlying turbulence. For this, we …

Townsend (The Structure of Turbulent Shear Flow, 1976, Cambridge University Press)
proposed a structural model for the logarithmic layer (log layer) of wall turbulence at high …

The interaction between boundary layer turbulence and a porous layer is the cornerstone of
interface engineering. In this study, the spatial and spectral-resolved transfer entropy is used …

Turbulent flows over dense canopies consisting of rigid filaments of small size are
investigated using direct numerical simulations. The effect of the height and spacing of the …

The interactions between a solid surface and a fluid flow underlie dynamical processes
relevant to air, sea, and land vehicle performance and numerous other technologies. Key …

Helmholtz resonators flush-mounted in a wall beneath turbulent boundary layer flow are
studied by focusing on their flow-induced excitation and effect on the grazing turbulent flow …

The interaction between the flow above and below a permeable wall is a central topic in the
study of porous media. While previous investigations have provided compelling evidence of …