A MEMS skin-friction sensor for time resolved measurements in separated flows

A MEMS skin-friction sensor for time resolved measurements in separated flows A MEMS surface fence sensor for skin-friction measurements in separated flows has been developed and tested successfully in low-speed flows. The new sensor is able to distinguish between forward and reverse flow and features a temporal resolution of up to 1 kHz. Calibrations of the sensor have been obtained in the range of –0.7 N m-2≤τ w≤0.7 N m-2 with a resolution of 0.02 N m-2. Comparative measurements with the wall-pulsed wire technique in a reverse-flow region show excellent agreement with respect to the mean skin-friction coefficient c f but also reveal some discrepancies for the fluctuating part c f′. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Experiments in Fluids Springer Journals

A MEMS skin-friction sensor for time resolved measurements in separated flows

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Publisher
Springer-Verlag
Copyright
Copyright © 2004 by Springer-Verlag
Subject
Engineering
ISSN
0723-4864
eISSN
1432-1114
D.O.I.
10.1007/s00348-003-0728-4
Publisher site
See Article on Publisher Site

Abstract

A MEMS surface fence sensor for skin-friction measurements in separated flows has been developed and tested successfully in low-speed flows. The new sensor is able to distinguish between forward and reverse flow and features a temporal resolution of up to 1 kHz. Calibrations of the sensor have been obtained in the range of –0.7 N m-2≤τ w≤0.7 N m-2 with a resolution of 0.02 N m-2. Comparative measurements with the wall-pulsed wire technique in a reverse-flow region show excellent agreement with respect to the mean skin-friction coefficient c f but also reveal some discrepancies for the fluctuating part c f′.

Journal

Experiments in FluidsSpringer Journals

Published: Mar 5, 2004

References

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