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SUMMARY:Input-output analysis\, model reduction and flow control applied t
 o the Blasius boundary layer - Henningson\, D (KTH)
DTSTART:20080909T134000Z
DTEND:20080909T140000Z
UID:TALK13350@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:The dynamics and control of disturbances in the spatially evol
 ving boundary layer on a flat-plate are investigated from an input-output 
 viewpoint. From the linearized Navier-Stokes equations with inputs (distur
 bances and actuators) and outputs (objective function and sensor) controll
 able\, observable and balanced modes are extracted using the snapshot-meth
 od and a matrix-free time-stepper approach. A balanced reduced-order model
  is constructed and shown to capture the input-output behaviour of lineari
 zed Navier-Stokes equations. This model is used to design a LQG-feedback c
 ontroller to suppress the growth of perturbations inside the boundary laye
 r
LOCATION:Seminar Room 1\, Newton Institute
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