Wind energy, together with other renewable energy sources, are expected to grow
substantially in the coming decades and play a key role in mitigating climate change and …

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 …

A direct numerical simulation of incompressible channel flow at a friction Reynolds number
($\mathit {Re} _ {{\it\tau}} $) of 5186 has been performed, and the flow exhibits a number of …

The effect of domain size on direct numerical simulations of turbulent channels with periodic
boundary conditions is studied. New simulations are presented up to Re τ= 4179 in boxes …

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 …

Fully resolved direct numerical simulations (DNSs) have been performed with a high-order
spectral element method to study the flow of an incompressible viscous fluid in a smooth …

A model-based description of the scaling and radial location of turbulent fluctuations in
turbulent pipe flow is presented and used to illuminate the scaling behaviour of the very …

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 …