This article reviews linear instability analysis of flows over or through complex two-
dimensional (2D) and 3D geometries. In the three decades since it first appeared in the …

We investigate numerically the transient linear growth of three-dimensional (3D)
perturbations in a homogeneous time-evolving mixing layer in order to identify which …

The dynamics of the wing tip vortex in the near-field of a NACA 0012 aerofoil has been
analysed by means of flow visualisations in a water tunnel. Different axial distances near the …

The transition to unsteadiness of a three-dimensional open cavity flow is investigated using
the joint application of direct numerical simulations and fully three-dimensional linear …

A novel mechanism is identified, through which a spanwise-invariant surface feature (a two-
dimensional forward-facing step) significantly stabilizes the stationary crossflow instability of …

Transient growth in the near wake region of the flow past a finite span wing Page 1 J. Fluid
Mech. (2019), vol. 866, pp. 399–430. c Cambridge University Press 2019 doi:10.1017/jfm.2019.110 …

The aim of the present paper is to analyse the dynamics of the Lamb–Oseen vortex when
continuously forced by a random excitation. Stochastic forcing is classically used to mimic …

Identifying generic physical mechanisms responsible for the generation of magnetic fields
and turbulence in differentially rotating flows is fundamental to understand the dynamics of …

In stratified and rotating fluids, pairs of columnar vertical vortices are subjected to three-
dimensional bending instabilities known as the zigzag instability or as the tall-column …

The optimal response of the Batchelor vortex is studied by considering the time-harmonically
forced problem with frequency ω⁠. High variance levels are sustained in this system under …