POD based experimental flow control on a NACA-4412 airfoil (invited)

Mark N. Glauser; Monica J. Young; Hiroshi Higuchi; Charles E. Tinney; Henry Carlson

POD based experimental flow control on a NACA-4412 airfoil (invited)

Mark N. Glauser, Monica J. Young, Hiroshi Higuchi, Charles E. Tinney, Henry Carlson

Research output: Contribution to conference › Paper › peer-review

Abstract

We are developing feedback control methods based on the use of Proper Orthogonal Decomposition POD and Modified Linear Stochastic Estimation mLSE for the flow over a NACA 4412 airfoil. By using a combination of Particle Image Velocimetry PIV and multiple surface pressure measurements, processed through a POD/mLSE algorithm, estimates of the velocity field from wall pressure alone are extracted. From such estimates knowledge of the state of the flow above the airfoil can be obtained (i.e., attached, fully separated or incipiently separated). Integral to the POD/mLSE algorithm is the estimation of the global POD coefficients. Here we are attempting to use these time dependent coefficients, which are estimated from wall pressure only, in a simple proportional feed-back loop (as the time series to drive the actuators) to keep the flow attached.

Original language	English (US)
Pages	4861-4870
Number of pages	10
State	Published - 2004
Event	42nd AIAA Aerospace Sciences Meeting and Exhibit - Reno, NV, United States Duration: Jan 5 2004 → Jan 8 2004

Other

Other	42nd AIAA Aerospace Sciences Meeting and Exhibit
Country/Territory	United States
City	Reno, NV
Period	1/5/04 → 1/8/04

ASJC Scopus subject areas

General Engineering

Cite this

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title = "POD based experimental flow control on a NACA-4412 airfoil (invited)",

abstract = "We are developing feedback control methods based on the use of Proper Orthogonal Decomposition POD and Modified Linear Stochastic Estimation mLSE for the flow over a NACA 4412 airfoil. By using a combination of Particle Image Velocimetry PIV and multiple surface pressure measurements, processed through a POD/mLSE algorithm, estimates of the velocity field from wall pressure alone are extracted. From such estimates knowledge of the state of the flow above the airfoil can be obtained (i.e., attached, fully separated or incipiently separated). Integral to the POD/mLSE algorithm is the estimation of the global POD coefficients. Here we are attempting to use these time dependent coefficients, which are estimated from wall pressure only, in a simple proportional feed-back loop (as the time series to drive the actuators) to keep the flow attached.",

author = "Glauser, {Mark N.} and Young, {Monica J.} and Hiroshi Higuchi and Tinney, {Charles E.} and Henry Carlson",

year = "2004",

language = "English (US)",

pages = "4861--4870",

note = "42nd AIAA Aerospace Sciences Meeting and Exhibit ; Conference date: 05-01-2004 Through 08-01-2004",

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TY - CONF

T1 - POD based experimental flow control on a NACA-4412 airfoil (invited)

AU - Glauser, Mark N.

AU - Young, Monica J.

AU - Higuchi, Hiroshi

AU - Tinney, Charles E.

AU - Carlson, Henry

PY - 2004

Y1 - 2004

N2 - We are developing feedback control methods based on the use of Proper Orthogonal Decomposition POD and Modified Linear Stochastic Estimation mLSE for the flow over a NACA 4412 airfoil. By using a combination of Particle Image Velocimetry PIV and multiple surface pressure measurements, processed through a POD/mLSE algorithm, estimates of the velocity field from wall pressure alone are extracted. From such estimates knowledge of the state of the flow above the airfoil can be obtained (i.e., attached, fully separated or incipiently separated). Integral to the POD/mLSE algorithm is the estimation of the global POD coefficients. Here we are attempting to use these time dependent coefficients, which are estimated from wall pressure only, in a simple proportional feed-back loop (as the time series to drive the actuators) to keep the flow attached.

AB - We are developing feedback control methods based on the use of Proper Orthogonal Decomposition POD and Modified Linear Stochastic Estimation mLSE for the flow over a NACA 4412 airfoil. By using a combination of Particle Image Velocimetry PIV and multiple surface pressure measurements, processed through a POD/mLSE algorithm, estimates of the velocity field from wall pressure alone are extracted. From such estimates knowledge of the state of the flow above the airfoil can be obtained (i.e., attached, fully separated or incipiently separated). Integral to the POD/mLSE algorithm is the estimation of the global POD coefficients. Here we are attempting to use these time dependent coefficients, which are estimated from wall pressure only, in a simple proportional feed-back loop (as the time series to drive the actuators) to keep the flow attached.

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M3 - Paper

AN - SCOPUS:2942731402

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T2 - 42nd AIAA Aerospace Sciences Meeting and Exhibit

Y2 - 5 January 2004 through 8 January 2004

ER -

POD based experimental flow control on a NACA-4412 airfoil (invited)

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