An integrated MEMS system for turbulent boundary layer control

Author

Tsao, Thomas ; Jiang, Fukang ; Miller, Raanan ; Tai, Yu-Chong ; Gupta, Bhusan ; Goodman, Rodney ; Tung, Steve ; Ho, Chih-Ming

Author_Institution

California Inst. of Technol., Pasadena, CA, USA

Volume

1

fYear

1997

fDate

16-19 Jun 1997

Firstpage

315

Abstract

The goal of this project is a first attempt to achieve active drag reduction using a large-scale integrated MEMS system. Previously, we have reported the successful development of a shear-stress imager which allows us to “see” surface vortices (1996). Here we present the promising results of the interaction between micro flap actuators and vortices. It is found that microactuators can actually reduce drag to values even lower than the drag associated with pure laminar flow, and that the microactuators can reduce shear stress values in turbulent flow as well. Based on these results, we have attempted the first totally integrated system that consists of 18 shear stress sensors, 3 magnetic flap-type actuators and control electronics for use in turbulent boundary layer control studies

Keywords

CMOS integrated circuits; boundary layer turbulence; drag; flow control; flow visualisation; large scale integration; microactuators; microsensors; shear flow; shear turbulence; vortices; wind tunnels; active drag reduction; integrated MEMS system; large-scale integration; magnetic flap-type actuators; micro flap actuators; microactuators; turbulent boundary layer control; turbulent flow; vortices; Actuators; Control systems; Fluid flow control; Fluid flow measurement; Microactuators; Micromechanical devices; Sensor systems; Stress control; Testing; Wire;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid State Sensors and Actuators, 1997. TRANSDUCERS '97 Chicago., 1997 International Conference on

Conference_Location

Chicago, IL

Print_ISBN

0-7803-3829-4

Type

conf

DOI

10.1109/SENSOR.1997.613647

Filename

613647