Transition delay using control theory
2011 (English)In: Philosophical Transactions. Series A: Mathematical, physical, and engineering science, ISSN 1364-503X, Vol. 369, no 1940, 1365-1381 p.Article in journal (Refereed) Published
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.
transition delay, feedback control, flat-plate boundary layer
IdentifiersURN: urn:nbn:se:kth:diva-31858DOI: 10.1098/rsta.2010.0358ISI: 000288066500003ScopusID: 2-s2.0-79954566415OAI: oai:DiVA.org:kth-31858DiVA: diva2:408344
QC 201104042011-04-042011-03-282011-04-04Bibliographically approved