Linear control of oscillator and amplifier flows

Peter J. Schmid, Denis Sipp

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

Linear control applied to fluid systems near an equilibrium point has important applications for many flows of industrial or fundamental interest. In this article we give an exposition of tools and approaches for the design of control strategies for globally stable or unstable flows. For unstable oscillator flows a feedback configuration and a model-based approach is proposed, while for stable noise-amplifier flows a feedforward setup and an approach based on system identification is advocated. Model reduction and robustness issues are addressed for the oscillator case; statistical learning techniques are emphasized for the amplifier case. Effective suppression of global and convective instabilities could be demonstrated for either case, even though the system-identification approach results in a superior robustness to off-design conditions.
Original languageEnglish (US)
JournalPhysical Review Fluids
Volume1
Issue number4
DOIs
StatePublished - Aug 30 2016
Externally publishedYes

Fingerprint

Dive into the research topics of 'Linear control of oscillator and amplifier flows'. Together they form a unique fingerprint.

Cite this