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1

Institute of Aerodynamics, RWTH Aachen University, Wüllnerstraße 5a, 52062 Aachen, Germany

2

Laboratory for Aero and Hydrodynamics, Delft University of Technology, 2628 CA Delft, The Netherlands





*

Author to whom correspondence should be addressed.



Abstract Wall-shear stress results from the relative motion of a fluid over a body surface as a consequence of the no-slip condition of the fluid in the vicinity of the wall. To determine the two-dimensional wall-shear stress distribution is of utter importance in theoretical and applied turbulence research. In this article, characteristics of the Micro-Pillar Shear-Stress Sensor MPS3, which has been shown to offer the potential to measure the two-directional dynamic wall-shear stress distribution in turbulent flows, will be summarized. After a brief general description of the sensor concept, material characteristics, possible sensor-structure related error sources, various sensitivity and distinct sensor performance aspects will be addressed. Especially, pressure-sensitivity related aspects will be discussed. This discussion will serve as ‘design rules’ for possible new fields of applications of the sensor technology. View Full-Text

Keywords: Fluid Mechanics; Turbulence; Wall-Shear Stress; Skin Friction; Micro-Pillar Shear-Stress Sensor MPS³ Fluid Mechanics; Turbulence; Wall-Shear Stress; Skin Friction; Micro-Pillar Shear-Stress Sensor MPS³





Autor: Sebastian Große 1, 2,* and Wolfgang Schröder 1

Fuente: http://mdpi.com/



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