Turbulent drag reduction by feedback: a Wiener filtering approach

Abstract : In an attempt to devise control laws for reducing drag in turbulent wall ows, modern control theory has recently been employed for the design of linear controllers [1], state estimators [2], and compensators [3; 4]. These approaches led to encouraging results, revealing the potential of linear control in targeting significant dynamics in wall turbulence [5]. All the aforementioned works, however, rely on an approximate statespace representation of the system dynamics, obtained by linearization of the governing equations about a base ow profile. The state-space formulation reduces the compensator design problem to the solution of two matrix Riccati equations, a procedure that becomes computationally cumbersome for high-dimensional systems. Effects of nonlinearities and modeling errors are accounted for by introducing state and measurement noises with known (approximately modeled) statistics.
Type de document :
Communication dans un congrès
B. Eckhardt. 12th EUROMECH European Turbulence Conference, Sep 2009, Marburg, Germany. Springer, 132, pp.241-246, 2009, Springer Proceedings Physics. 〈10.1007/978-3-642-03085-7_59〉
Liste complète des métadonnées

https://hal-polytechnique.archives-ouvertes.fr/hal-01053026
Contributeur : Denis Roura <>
Soumis le : mardi 29 juillet 2014 - 14:01:59
Dernière modification le : jeudi 10 mai 2018 - 02:03:06

Lien texte intégral

Identifiants

Collections

Citation

Fulvio Martinelli, Maurizio Quadrio, P. Luchini. Turbulent drag reduction by feedback: a Wiener filtering approach. B. Eckhardt. 12th EUROMECH European Turbulence Conference, Sep 2009, Marburg, Germany. Springer, 132, pp.241-246, 2009, Springer Proceedings Physics. 〈10.1007/978-3-642-03085-7_59〉. 〈hal-01053026〉

Partager

Métriques

Consultations de la notice

142