Method and System for Controlling Airfoil Actuators

Hiroshi Higuchi (Inventor), Mark Glauser (Inventor)

Research output: Patent

Abstract

A method of measuring the state of flow above an airfoil using an estimation of the velocity field based on a combination of Particle Image Velocimetry PIV and multiple surface pressure measurements processed through a POD/mLSE algorithm. Integral to the POD/mLSE algorithm is the estimation of the global POD coefficients. The utility of these time dependent coefficients, which are estimated from surface pressure only, are demonstrated in a simple proportional feedback loop (as the time series to drive the actuators) to keep the flow attached. This method requires realistic feedback flow control since surface measurements and not inflow measurements are required for practical applications. The estimation method works well with dynamic strain on flexible bodies and is not limited to estimation from pressure only.
Original languageEnglish (US)
Patent number7,930,073
StatePublished - Nov 30 2006

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Airfoils
Actuators
Surface measurement
Control surfaces
Pressure measurement
Flow control
Velocity measurement
Feedback control
Time series
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Higuchi, H., & Glauser, M. (2006). Method and System for Controlling Airfoil Actuators. (Patent No. 7,930,073).

Method and System for Controlling Airfoil Actuators. / Higuchi, Hiroshi (Inventor); Glauser, Mark (Inventor).

Patent No.: 7,930,073.

Research output: Patent

Higuchi H, Glauser M, inventors. Method and System for Controlling Airfoil Actuators. 7,930,073. 2006 Nov 30.
Higuchi, Hiroshi (Inventor) ; Glauser, Mark (Inventor). / Method and System for Controlling Airfoil Actuators. Patent No.: 7,930,073.
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