Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
Actuator and Sensor Placement for Closed-loop Control of Convective Instabilities. Part 2: 3D Tollmien_Schlichting Waves.
Submission Author:
Guilherme Freire , SP
Co-Authors:
Guilherme Freire, André Cavalieri, Flávio Silvestre, Ardeshir Hanifi, Dan Henningson
Presenter: Guilherme Freire
doi://10.26678/ABCM.COBEM2019.COB2019-1514
Abstract
This work deals with the characterization of the closed-loop control performance aiming at the delay of transition in a 3D Blasius boundary layer. The objective of this study is to explore how the sensor-actuator placement affects the optimal control problem, formulated using linear quadratic gaussian (LQG) regulators through reduced order models. This will be carried out by evaluating errors of the optimal estimator at positions where control gains are significant through the gamma metric, analysing why some choices of sensor-actuator placement are more effective than others for flow control.
Keywords
3D Blasius boundary layer, Closed-loop control, Sensor-actuator placement
