Adaptive and model-based control theory applied to convectively unstable flows
| Autor: | Dan S. Henningson, Onofrio Semeraro, Shervin Bagheri, Nicolò Fabbiane |
|---|---|
| Přispěvatelé: | Department of Mechanical Engineering [Stockholm], Royal Institute of Technology [Stockholm] (KTH ), Laboratoire d'hydrodynamique (LadHyX), École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Engineering
Adaptive control FOS: Physical sciences Strömningsmekanik och akustik 02 engineering and technology Linear-quadratic-Gaussian control 01 natural sciences Transfer function 010305 fluids & plasmas Physics::Fluid Dynamics 0203 mechanical engineering Fluid dynamics Control theory 0103 physical sciences Boundary-layer flow [PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Mechanics of the fluids [physics.class-ph] Fluid Mechanics and Acoustics Turbulence business.industry Mechanical Engineering Linear system Fluid Dynamics (physics.flu-dyn) Laminar flow Kalman filter Physics - Fluid Dynamics Optimal control Flow control 020303 mechanical engineering & transports Drag business |
| Zdroj: | Applied Mechanics Reviews Applied Mechanics Reviews, American Society of Mechanical Engineers, 2014, 66 (6), pp.60801. ⟨10.1115/1.4027483⟩ |
| ISSN: | 0003-6900 |
| DOI: | 10.1115/1.4027483⟩ |
| Popis: | Research on active control for the delay of laminar-turbulent transition in boundary layers has made a significant progress in the last two decades, but the employed strategies have been many and dispersed. Using one framework, we review model-based techniques, such as linear-quadratic regulators, and model-free adaptive methods, such as least-mean square filters. The former are supported by a elegant and powerful theoretical basis, whereas the latter may provide a more practical approach in the presence of complex disturbance environments, that are difficult to model. We compare the methods with a particular focus on efficiency, practicability and robustness to uncertainties. Each step is exemplified on the one-dimensional linearized Kuramoto-Sivashinsky equation, that shows many similarities with the initial linear stages of the transition process of the flow over a flat plate. Also, the source code for the examples are provided. MATLAB\copyright code available (url link in the paper) Controllability/Observability section had been added |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|