The Micro-Pillar Shear-Stress Sensor MPS3 for Turbulent Flow

Journal article (2009)
Faculty
Mechanical, Maritime and Materials Engineering (Mechanical, Maritime and Materials Engineering) (TU Delft)
Copyright: This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
DOI: https://doi.org/doi:10.3390/s90402222
Fluid mechanics Turbulence Skin friction Wall-shear stress Micro-pillar Shear-stress sensor MPS3
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Published Date

30-03-2009

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Source:

Sensors, 9 (4), 2009

ISSN:

1424-8220

Faculty

Mechanical, Maritime and Materials Engineering

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.

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