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Tuesday 09 September 2008, 14:40-15:00
Input-output analysis, model reduction and flow control applied to the Blasius boundary layer
- đ¤ Speaker: Henningson, D (KTH)
- đ Date & Time: Tuesday 09 September 2008, 14:40 - 15:00
- đ Venue: Seminar Room 1, Newton Institute
Abstract
The dynamics and control of disturbances in the spatially evolving boundary layer on a flat-plate are investigated from an input-output viewpoint. From the linearized Navier-Stokes equations with inputs (disturbances and actuators) and outputs (objective function and sensor) controllable, observable and balanced modes are extracted using the snapshot-method and a matrix-free time-stepper approach. A balanced reduced-order model is constructed and shown to capture the input-output behaviour of linearized Navier-Stokes equations. This model is used to design a LQG -feedback controller to suppress the growth of perturbations inside the boundary layer
Series This talk is part of the Isaac Newton Institute Seminar Series series.
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