Application of photon correlation techniques to the measurement of flow with a sinusoidal perturbation

F. H. Barnes, Q. I. Daudpota, C. A. Greated, I. Grant

    Research output: Contribution to journalArticle

    Abstract

    Application of the photon correlation technique to the measurement of sinusoidally perturbed fluid flows is described. An expression is derived for the shape of the count correlation function in terms of mean flow velocity and perturbation amplitude. Measurements have been made both in the wake behind a circular cylinder and with a mechanical flow simulator. These show that perturbation amplitudes can be measured by direct visual observation of the correlation displays. Maximum entropy transformation and curve fitting techniques are also described which produce results of higher accuracy. Copyright © 1977 American Institute of Physics.

    Original languageEnglish
    Pages (from-to)211-215
    Number of pages5
    JournalPhysics of Fluids
    Volume20
    Issue number2
    Publication statusPublished - 1977

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    Barnes, F. H., Daudpota, Q. I., Greated, C. A., & Grant, I. (1977). Application of photon correlation techniques to the measurement of flow with a sinusoidal perturbation. Physics of Fluids, 20(2), 211-215.