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Using non-normality for passive laminar flow control

By C. Cossu, L. Brandt, J.H.M. Fransson and A. Talamelli

Abstract

The scope of this paper was to show how optimal transient growth due to non-normality can be used as an effective amplifier of a passive laminar flow control. Optimal perturbations, usually seen as the most dangerous for transition are here seen as the most effective for control. It is likely that the use of optimal perturbations to modify the basic state at leading order with low energy could be applied to other strongly non-normal systems on different physical applications

Publisher: 'CICS.NOVA'
Year: 2006
OAI identifier: oai:cris.unibo.it:11585/54893
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