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Transition delay using control theory
KTH, School of Engineering Sciences (SCI), Mechanics, Stability, Transition and Control.ORCID iD: 0000-0002-8209-1449
KTH, School of Engineering Sciences (SCI), Mechanics, Stability, Transition and Control.ORCID iD: 0000-0001-7864-3071
2011 (English)In: Philosophical Transactions. Series A: Mathematical, physical, and engineering science, ISSN 1364-503X, E-ISSN 1471-2962, Vol. 369, no 1940, 1365-1381 p.Article in journal (Refereed) Published
Abstract [en]

This review gives an account of recent research efforts to use feedback control for the delay of laminar-turbulent transition in wall-bounded shear flows. The emphasis is on reducing the growth of small-amplitude disturbances in the boundary layer using numerical simulations and a linear control approach. Starting with the application of classical control theory to two-dimensional perturbations developing in spatially invariant flows, flow control based on control theory has progressed towards more realistic three-dimensional, spatially inhomogeneous flow configurations with localized sensing/actuation. The development of low-dimensional models of the Navier-Stokes equations has played a key role in this progress. Moreover, shortcomings and future challenges, as well as recent experimental advances in this multi-disciplinary field, are discussed.

Place, publisher, year, edition, pages
2011. Vol. 369, no 1940, 1365-1381 p.
Keyword [en]
transition delay, feedback control, flat-plate boundary layer
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-31858DOI: 10.1098/rsta.2010.0358ISI: 000288066500003Scopus ID: 2-s2.0-79954566415OAI: oai:DiVA.org:kth-31858DiVA: diva2:408344
Note
QC 20110404Available from: 2011-04-04 Created: 2011-03-28 Last updated: 2017-12-11Bibliographically approved

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Bagheri, ShervinHenningson, Dan S.

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