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    An approximate amplitude attenuation correction for hot-film shear stress sensors

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    Author
    Kunkel, G. J.; Marusic, I.
    Date
    2003
    Source Title
    Experiments in Fluids
    University of Melbourne Author/s
    Marusic, Ivan
    Affiliation
    Engineering: Department of Mechanical and Manufacturing Engineering
    Metadata
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    Document Type
    Journal (Paginated)
    Citations
    Kunkel, G. J., & Marusic, I. (2003). An approximate amplitude attenuation correction for hot-film shear stress sensors. Experiments in Fluids, 34, 285-290.
    Access Status
    This item is currently not available from this repository
    URI
    http://hdl.handle.net/11343/33536
    Description

    © 2003 Springer Verlag. Publisher pdf version is restricted access in accordance with the Springer Verlag policy.

    Abstract
    A correction method, based on experimental results, has been developed to remedy the amplitude attenuation that occurs when statically calibrated hot-film shear stress sensors are used in air. The correction method is necessary in applications where typically two dimensional arrays of measurement points are needed and other sensors, such as hot wires, cannot be employed. The method was developed with a primary aim of obtaining the correct power spectral density of an ensemble-averaged signature from an array of hot-film shear stress sensors. The hot-film sensors are corrected by comparing their individual power spectral densities to a reference spectrum obtained with a single hot wire, slightly elevated but within the viscous sublayer of the turbulent boundary layer. The method is verified by comparing the corrected hot film’s turbulence statistics, power spectral density, and correlation coefficients with the corresponding results from the hot wire.
    Keywords
    wall turbulence

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