We review wall-bounded turbulent flows, particularly high–Reynolds number, zero–pressure
gradient boundary layers, and fully developed pipe and channel flows. It is apparent that the …

Wall-bounded turbulent flows at high Reynolds numbers have become an increasingly
active area of research in recent years. Many challenges remain in theory, scaling, physical …

Coherent structures in wall turbulence transport momentum and provide a means of
producing turbulent kinetic energy. Above the viscous wall layer, the hairpin vortex paradigm …

A regime of very long meandering positive and negative streamwise velocity fluctuations,
that we term 'superstructures', are found to exist in the log and lower wake regions of …

In this paper we investigate the relationship between the large-and small-scale energy-
containing motions in wall turbulence. Recent studies in a high-Reynolds-number turbulent …

Hot-wire data acquired in a high Reynolds number facility are used to illustrate the need for
adequate scale separation when considering the coherent structure in wall-bounded …

Large-scale motions (LSMs; having wavelengths up to 2–3 pipe radii) and very-LSMs
(having wavelengths more than 3 pipe radii) have been shown to carry more than half of the …

The kinematics and dynamics of wall-bounded turbulence are surveyed, with emphasis on
the multiscale processes associated with the logarithmic layer and with its interactions with …

A collaborative experimental effort employing the minimally perturbed atmospheric surface-
layer flow over the salt playa of western Utah has enabled us to map coherence in turbulent …

The organization of vortex clusters above the buffer layer of turbulent channels is analysed
using direct numerical simulations at friction Reynolds numbers up to. That influence …