Microelectromechanical systems-based feedback control of turbulence for skin friction reduction. (English) Zbl 1157.76022

Kasagi, Nobuhide; Suzuki, Yuji; Fukagata, Koji

Davis, Stephen H. (ed.) et al., Annual review of fluid mechanics. Vol. 41. Palo Alto, CA: Annual Reviews (ISBN 978-0-8243-0741-7/hbk). Annual Review of Fluid Mechanics 41, 231-251 (2009).

Summary: 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 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 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.
For the entire collection see [Zbl 1155.76006].

MSC:

76F70	Control of turbulent flows
76-02	Research exposition (monographs, survey articles) pertaining to fluid mechanics
93B52	Feedback control

Keywords:

wall-surface sensing; shear stress; pressure fluctuations