Feedback control of bimodal wake dynamics

Ruiying Li, Diogo Barros, Jacques Borée, Olivier Cadot, Bernd R. Noack, Laurent Cordier

Research output: Contribution to journalLetter

27 Scopus citations

Abstract

Feedback control is applied to symmetrize the bimodal dynamics of a turbulent blunt body wake. The flow is actuated with two lateral slit jets and monitored with pressure sensors at the rear surface. The physics-based controller is inferred from preliminary open-loop tests and is capable of symmetrizing the wake. A slight pressure recovery is achieved due to the net balance between the favourable effect of wake symmetrization and adverse effect of shear-layer mixing and vortex shedding amplification.

Original languageEnglish (US)
Article number158
JournalExperiments in Fluids
Volume57
Issue number10
DOIs
StatePublished - Oct 1 2016

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    Li, R., Barros, D., Borée, J., Cadot, O., Noack, B. R., & Cordier, L. (2016). Feedback control of bimodal wake dynamics. Experiments in Fluids, 57(10), [158]. https://doi.org/10.1007/s00348-016-2245-2