Microelectromechanical Systems–Based Feedback Control of Turbulence for Skin Friction Reduction
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Nobuhide Kasagi [1] ; Koji Fukagata [2]
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[1] University of Tokyo
University of Tokyo
Japón
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[2] Keio University
Keio University
Japón
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- Localización: Annual review of fluid mechanics, ISSN 0066-4189, Nº. 41, 2009, págs. 231-251
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
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Resumen
This article focuses on the feedback control of turbulence for skin friction reduction and reviews the state of the art of control algorithms and distributed microsensors and microactuators. From a viewpoint of possible practical applications, we discuss only the control schemes based on the wall-surface sensing of shear stress and pressure fluctuations with their assessment in direct numerical simulation. The rapid development of microelectromechanical systems (MEMS) flow sensors/actuators is sketched, and a prototype feedback control system assembled for a turbulent channel flow is introduced. Finally, several major remaining issues in control algorithms and massive fabrication of microdevices are discussed.
