Modeling wall turbulence remains a major challenge, as a sufficient physical understanding
of these flows is still lacking. In an effort to move toward a physics-based model, AA …

Time-resolved particle image velocimetry (TR-PIV) has become widespread in fluid
dynamics. Essentially a velocity field movie, the dynamic content provides temporal as well …

We study the structure of high-speed zero-pressure-gradient turbulent boundary layers up to
friction Reynolds number and heat transfer at the wall are considered. The present …

Known structures and self-sustaining mechanisms of wall turbulence are reviewed and
explored in the context of the scale interactions implied by the nonlinear advective term in …

A 50 year journey through flow control strategies that seek to achieve viscous drag reduction
in turbulent boundary layers is presented. These are shown to focus on different …

Wall turbulence is a ubiquitous phenomenon in nature and engineering applications, yet
predicting such turbulence is difficult due to its complexity. High-Reynolds-number …

The classical view of wall-bounded turbulence considers a near-wall inner region where all
velocity statistics are universally dependent on distance from the wall when scaled with …

According to Townsend's attached eddy hypothesis (AEH), a boundary layer flow is
comprised of wall-attached eddies, but to extract the part of the flow whose statistical …

We present experimental evidence that the superstructures in turbulent boundary layers
comprise smaller, geometrically self-similar coherent motions. The evidence comes from …

With the aim to characterize the near-wall flow structures and their interaction with large-
scale motions in the log-law region, time-resolved planar and volumetric flow field …