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A framework for closed-loop flow control using the parabolized stability equations

Communication avec acte
Author
SASAKI, Kenzo
471029 Instituto Tecnológico de Aeronáutica [São José dos Campos] [ITA]
CAVALIERI, André V. G.
560912 Acoustique, Aérodynamique, Turbulence [Institut Pprime] [2AT ]
471029 Instituto Tecnológico de Aeronáutica [São José dos Campos] [ITA]
SILVESTRE, Flávio J.
471029 Instituto Tecnológico de Aeronáutica [São José dos Campos] [ITA]
JORDAN, Peter
131861 University of Groningen [Groningen]
300463 École Nationale Supérieure de Mécanique et d’Aérotechnique [Poitiers] [ISAE-ENSMA]
560912 Acoustique, Aérodynamique, Turbulence [Institut Pprime] [2AT ]
TISSOT, Gilles
75 Institut de Recherche Mathématique de Rennes [IRMAR]
961 Laboratoire d'Acoustique de l'Université du Mans [LAUM]
486012 Fluid Flow Analysis, Description and Control from Image Sequences [FLUMINANCE]
ccBIAU, Damien
118112 Institut Pprime [UPR 3346] [PPrime [Poitiers]]
134975 Laboratoire de Dynamique des Fluides [DynFluid]

URI
http://hdl.handle.net/10985/17797
DOI
10.2514/6.2017-3003
Date
2017

Abstract

We develop a reduced-order-model framework using the parabolized stability equations and identification techniques for the closed-loop control of unsteady fluctuations along fluidic systems. These models had been successfully applied to a turbulent jet as estimation techniques and to an incompressible shear-layer for the development of closed-loop control laws. Through this paper, we propose a further investigation of the PSE-based transfer functions, exploring its flexibility to educe different control schemes and to determine the most effective sensor/actuator positions. Emphasis is be given to the feedforward and feedback configurations for flow control, and differences are understood in terms of causality. A study of the robustness to uncertainties in Reynolds and mean flow velocity, along with external perturbations is also presented. These topics allow deeper insight into the active closed-loop flow control problem and therefore may lead to more effective schemes, particularly on what concerns the experimental implementation of closed-loop control.

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