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A “robust” vortex-shedding anemometer

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Conclusions

A simple device has been constructed for the purpose of monitoring low air speeds. Two such devices have been calibrated to cover the speed range 0.4 to 1.3 m/s, and have shown linear characteristics of frequency versus speed. Flow visualization has shown the absence of end cells and the presence of parallel shedding in the case of low-aspect-ratio configurations.

Such a device exhibits a number of advantages over other speed-measuring devices:

  1. i)

    Simplicity of design and use.

  2. ii)

    A linear output variation with speed.

  3. iii)

    A relatively large speed range can be covered with one device.

  4. iv)

    No recalibration is necessary.

This device is intended for use in monitoring steady, uniform flows and may not be suitable for the measurement of non-uniform or highly turbulent flows.

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Authors and Affiliations

  1. Department of Engineering, University of Cambridge, Trumpington Street, CB2 1PZ, Cambridge, UK

    A. Papangelou

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  1. A. Papangelou
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Papangelou, A. A “robust” vortex-shedding anemometer. Experiments in Fluids 14, 208–210 (1993). https://doi.org/10.1007/BF00189512

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  • DOI: https://doi.org/10.1007/BF00189512

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