Calibration and use of a MEMS surface fence for wall shear stress measurements in turbulent flows

被引：0
作者：
Ralph Savelsberg
Michael Schiffer
Ernst Obermeier
Ian P. Castro
机构：
[1] Netherlands Defence Academy,Faculty of Military Science
[2] Den Helder,Microsensor and Actuator Technology
[3] TDK-EPC,Faculty of Engineering and the Environment
[4] TU Berlin,undefined
[5] University of Southampton,undefined
来源：
Experiments in Fluids | 2012年 / 53卷
关键词：
Particle Image Velocimetry; Wall Shear Stress; Laser Doppler Anemometry; Viscous Sublayer; Surface Shear Stress;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Microelectromechanical systems (MEMS) sensors are increasingly used for measurements in fluid dynamics since, because of their inherently compact size, they allow access to the information that was previously unavailable. In this paper we describe further testing of a MEMS sensor used to measure surface shear stress. It is a wall-mounted fence that bends under the influence of the pressure difference resulting from the velocity shear at the wall. The fences have been successfully calibrated in a wind tunnel and, as an example of their application, used to determine mean and fluctuating shear stress (along with spectra) in a cylindrical cavity flow.
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页码：489 / 498
页数：9
相关论文
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