An inexpensive and versatile technique for wide frequency range surface pressure measurements: an application for the study of turbulent buffeting of a square cylinder

An inexpensive and versatile technique for wide frequency range surface pressure measurements: an... This work presents the development of an inexpensive measurement technique based on miniature microphones for the measurement of pressure fluctuations in a wide frequency range, starting from infrasound up to several kilohertz. Special emphasis has been put on achieving accurate calibration of the system at very low frequencies and good agreement with reference measurements have been achieved at frequencies as low as 1 Hz, therefore opening new low-budget research possibilities in many fields of fluid mechanics. The measurement technique proposed is specially indicated when the number of simultaneous pressure measurements is high since the sensors used are inexpensive, contrarily to common research equipment. One particular area in which this technique results useful is bluff-body aerodynamics. As an example of the potential of the technique, the structural response of a finite-square cylinder immersed in a turbulent flow is studied. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Experiments in Fluids Springer Journals

An inexpensive and versatile technique for wide frequency range surface pressure measurements: an application for the study of turbulent buffeting of a square cylinder

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Publisher
Springer Berlin Heidelberg
Copyright
Copyright © 2013 by Springer-Verlag Berlin Heidelberg
Subject
Engineering; Engineering Fluid Dynamics; Fluid- and Aerodynamics; Engineering Thermodynamics, Heat and Mass Transfer
ISSN
0723-4864
eISSN
1432-1114
D.O.I.
10.1007/s00348-013-1627-y
Publisher site
See Article on Publisher Site

Abstract

This work presents the development of an inexpensive measurement technique based on miniature microphones for the measurement of pressure fluctuations in a wide frequency range, starting from infrasound up to several kilohertz. Special emphasis has been put on achieving accurate calibration of the system at very low frequencies and good agreement with reference measurements have been achieved at frequencies as low as 1 Hz, therefore opening new low-budget research possibilities in many fields of fluid mechanics. The measurement technique proposed is specially indicated when the number of simultaneous pressure measurements is high since the sensors used are inexpensive, contrarily to common research equipment. One particular area in which this technique results useful is bluff-body aerodynamics. As an example of the potential of the technique, the structural response of a finite-square cylinder immersed in a turbulent flow is studied.

Journal

Experiments in FluidsSpringer Journals

Published: Nov 28, 2013

References

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