Since the seminal studies by Osborne Reynolds in the nineteenth century, pipe flow has
served as a primary prototype for investigating the transition to turbulence in wall-bounded …

Experiments and numerical simulations have shown that turbulence in transitional wall-
bounded shear flows frequently takes the form of long oblique bands if the domains are …

With decreasing Reynolds number, lower than the non-localised solutions. Relative periodic
orbit solutions bifurcating from branches of travelling waves have also been computed. A …

Intermittent turbulent-laminar patterns characterize the transition to turbulence in pipe, plane
Couette, and plane channel flows. The time evolution of turbulent-laminar bands in plane …

Many transitional shear flows show a regime of complex spatiotemporal dynamics that has
been linked to directed percolation. Using direct numerical simulations of plane-Poiseuille …

In this paper we experimentally study the transitional range of Reynolds numbers in plane
Couette–Poiseuille flow, focusing our attention on the localized turbulent structures triggered …

The transitional regime of plane channel flow is investigated above the transitional point
below which turbulence is not sustained, using direct numerical simulation in large domains …

We numerically studied high-aspect-ratio channel flows with spanwise sidewalls, that is,
wide duct flows, in its subcritical turbulent transitional regime. The infinite channel flow is …

Low Reynolds number turbulence in wall-bounded shear flows en route to laminar flow
takes the form of spatially intermittent turbulent structures. In plane shear flows, these appear …

The effect of radius ratio on turbulent convective heat transfer within a concentric annular
pipe has been studied using direct numerical simulation. Four radius ratios (⁠ R i/R o= 0.1 …