▪ Abstract The current understanding of boundary-layer receptivity to external acoustic and
vortical disturbances is reviewed. Recent advances in theoretical modeling, numerical …

The Oldroyd-B model has been used extensively to predict a host of instabilities in shearing
flows of viscoelastic fluids, often realized experimentally using polymer solutions. The …

Fluid flows that are smooth at low speeds become unstable and then turbulent at higher
speeds. This phenomenon has traditionally been investigated by linearizing the equations of …

Spectral methods have long been popular in direct and large eddy simulation of turbulent
flows, but their use in areas with complex-geometry computational domains has historically …

In recent work it has been shown that there can be substantial transient growth in the energy
of small perturbations to plane Poiseuille and Couette flows if the Reynolds number is below …

Streamwise streaks are ubiquitous in transitional boundary layers, particularly when
subjected to high levels of free-stream turbulence. Using the steady boundary-layer …

The dependence on initial conditions of the three-dimensional algebraic spatial instability of
the Blasius boundary layer is examined by a recently developed method of receptivity …

A scenario of transition to turbulence likely to occur during the development of natural
disturbances in a flat-plate boundary layer is studied. The perturbations at the leading edge …

The effect of high levels of free-stream turbulence on the transition in a Blasius boundary
layer is studied by means of direct numerical simulations, where a synthetic turbulent inflow …

The modification of the mean and fluctuating characteristics of a flat-plate boundary layer
subjected to nearly isotropic free stream turbulence (FST) is studied experimentally using …