Pipe flow and many other shear flows show a transition to turbulence at flow rates for which
the laminar profile is stable against infinitesimal perturbations. In this brief review the recent …

This paper aims at characterizing the bypass transition in boundary layers subject to strong
pressure gradient and curvature effects. A series of highly resolved large-eddy simulations …

In this essay, we recall the specificities of the transition to turbulence in wall-bounded flows
and present recent achievements in the understanding of this problem. The transition is …

The flow over a forward-facing step (FFS) at and the evolution of the coherent vortical
structures. Nevertheless, the separation length is more than twice as large for the laminar …

The onset of turbulence in pipe flow has defied detailed understanding ever since the first
observations of the spatially heterogeneous nature of the transition. Recent theoretical …

The freestream turbulence-induced transition of a dense-gas boundary layer past a thick
leading edge representative of turbine blades is investigated with large-eddy simulations …

In this work, the free-stream turbulence (FST) induced transition of a flat plate boundary layer
is studied using particle image velocimetry (PIV) under variable Reynolds number (Re), FST …

Boundary layer receptivity to free-stream disturbances plays a crucial role in forming
coherent structures, whose breakup drives the laminar to turbulent flow transition. In the …

The concept of edge states is investigated in the asymptotic suction boundary layer in
relation to the receptivity process to noisy perturbations and the nucleation of turbulent …

This work deals with the closed-loop control of streaky structures induced by free-stream
turbulence (FST), at the levels of 3.0% and 3.5%, in a zero-pressure-gradient transitional …