A Dynamic Observer to Capture and Control Perturbation Energy in Noise Amplifier Flows

J. Guzmán Iñigo; D. Sipp; P. J. Schmid

doi:10.1016/j.piutam.2015.03.057

A Dynamic Observer to Capture and Control Perturbation Energy in Noise Amplifier Flows

J. Guzmán Iñigo, D. Sipp, P. J. Schmid

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In this article, we present a technique to extract a reduced-order model of a transitional flat-plate boundary layer from simultaneous velocity snapshots and wall-shear stress measurements. The proposed approach combines a reduction of the degrees of freedom of the system by a projection of the velocity snapshots onto a POD basis together with a system-identification technique to obtain a state-space model of the flow. Such a model is then used in an optimal control framework to reduce the kinetic energy of the perturbation field and therefore delay transition.

Original language	English (US)
Title of host publication	Procedia IUTAM
Publisher	Elsevier
Pages	337-343
Number of pages	7
DOIs	https://doi.org/10.1016/j.piutam.2015.03.057
State	Published - Jan 1 2015
Externally published	Yes

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Generated from Scopus record by KAUST IRTS on 2022-09-13

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10.1016/j.piutam.2015.03.057

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abstract = "In this article, we present a technique to extract a reduced-order model of a transitional flat-plate boundary layer from simultaneous velocity snapshots and wall-shear stress measurements. The proposed approach combines a reduction of the degrees of freedom of the system by a projection of the velocity snapshots onto a POD basis together with a system-identification technique to obtain a state-space model of the flow. Such a model is then used in an optimal control framework to reduce the kinetic energy of the perturbation field and therefore delay transition.",

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AU - Iñigo, J. Guzmán

AU - Sipp, D.

AU - Schmid, P. J.

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PY - 2015/1/1

Y1 - 2015/1/1

N2 - In this article, we present a technique to extract a reduced-order model of a transitional flat-plate boundary layer from simultaneous velocity snapshots and wall-shear stress measurements. The proposed approach combines a reduction of the degrees of freedom of the system by a projection of the velocity snapshots onto a POD basis together with a system-identification technique to obtain a state-space model of the flow. Such a model is then used in an optimal control framework to reduce the kinetic energy of the perturbation field and therefore delay transition.

AB - In this article, we present a technique to extract a reduced-order model of a transitional flat-plate boundary layer from simultaneous velocity snapshots and wall-shear stress measurements. The proposed approach combines a reduction of the degrees of freedom of the system by a projection of the velocity snapshots onto a POD basis together with a system-identification technique to obtain a state-space model of the flow. Such a model is then used in an optimal control framework to reduce the kinetic energy of the perturbation field and therefore delay transition.

UR - https://linkinghub.elsevier.com/retrieve/pii/S2210983815000838

UR - http://www.scopus.com/inward/record.url?scp=84940663218&partnerID=8YFLogxK

U2 - 10.1016/j.piutam.2015.03.057

DO - 10.1016/j.piutam.2015.03.057

M3 - Conference contribution

SP - 337

EP - 343

BT - Procedia IUTAM

PB - Elsevier

ER -

A Dynamic Observer to Capture and Control Perturbation Energy in Noise Amplifier Flows

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