The objective of this article is to review some developments in the use of adjoint equations in
hydrodynamic stability theory. Adjoint-based sensitivity analysis finds both analytical and …

In a thermoacoustic system, such as a flame in a combustor, heat release oscillations couple
with acoustic pressure oscillations. If the heat release is sufficiently in phase with the …

The two-dimensional flow around a rotating circular cylinder is studied at Re= 100. The
instability mechanisms for the first and second shedding modes are analysed. The region in …

In this work the flip–flop instability occurring in the flow past two side-by-side circular
cylinders is numerically investigated within the range of non-dimensional gap spacing. The …

Despite its simple geometry, the turbulent flow in vaneless diffusers is asymmetric and highly
skewed. In the present work, a frozen eddy viscosity approach was employed to investigate …

The two-dimensional stationary flow past a rotating cylinder is investigated for both two-and
three-dimensional perturbations. The instability mechanisms are analysed using linear …

The sensitivity of the global properties of a two-dimensional turbulent wake produced by the
separated flow of a 'D'-shaped cylinder at is investigated experimentally using a small …

The transonic flow field around a supercritical airfoil is investigated. The objective of the
present paper is to enhance the understanding of the physical mechanics behind two …

The sensitivity of the three-dimensional secondary instability of a circular-cylinder wake to a
structural perturbation of the associated linear equations is investigated. In particular, for a …

This paper investigates the three-dimensional stability of the wake behind a symmetrically
confined circular cylinder by a linear stability analysis. Emphasis has been placed on …