Optimal control of amplifier flows using system identification

AURÉLIEN HERVÉ, DENIS SIPP, PETER SCHMID, MANUEL SAMUELIDES 6th theoretical Fluid mechanics conference – AIAA — Jun, 27 2011


This paper aims to suppress unsteadiness in a convectively unstable flow configuration. System identification methods will be used to design a controller. Unlike classical Galerkin-based methods, no knowledge about the dynamics or about the incoming perturbations is required, as the whole process relies only on data that one could extract from a lab experiment, hence le ading to a methodology that is suitable for experimental control. The numerical control of a 2D-backward facing step will be achieved to illustrate the process.


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