SIMPLE aerodynamic configurations under even modest conditions can exhibit complex
flows with a wide range of temporal and spatial features. It has become common practice in …

This review article addresses the dynamics and control of low-frequency unsteadiness, as
observed in some aerodynamic applications. It presents a coherent and rigorous linearized …

Three amplification mechanisms present in turbulent jets, namely lift-up, Kelvin–Helmholtz
and Orr, are characterized via global resolvent analysis and spectral proper orthogonal …

Coherent turbulent wave-packet structures in a jet at Reynolds number 460 000 and Mach
number 0.4 are extracted from experimental measurements and are modeled as linear …

We extend linear input/output (resolvent) analysis to take into account nonlinear triadic
interactions by considering a finite number of harmonics in the frequency domain using the …

This review presents a framework for the input-output analysis, model reduction, and control
design for fluid dynamical systems using examples applied to the linear complex Ginzburg …

The global linear stability of the flat-plate boundary-layer flow to three-dimensional
disturbances is studied by means of an optimization technique. We consider both the …

The dynamics and control of two-dimensional disturbances in the spatially evolving
boundary layer on a flat plate are investigated from an input–output viewpoint. A set-up of …

This article contains a review of modal stability theory. It covers local stability analysis of
parallel flows including temporal stability, spatial stability, phase velocity, group velocity …

This article deals with the linear dynamics of a transitional boundary layer subject to two-
dimensional Tollmien–Schlichting instabilities. We consider a flat plate including the leading …