A nonintrusive technique for measuring dynamic gas density properties is described. Molecular Rayleigh scattering is used to measure the time-history of gas density simultaneously at eight spatial locations at a 50 kHz sampling rate. The data are analyzed using the Welch method of modified periodograms to reduce measurement uncertainty. Cross-correlations, power spectral density functions, cross-spectral density functions, and coherence functions may be obtained from the data. The technique is demonstrated using low speed co-flowing jets with a heated inner jet.


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    Title :

    Multiple point dynamic gas density measurements using molecular Rayleigh scattering


    Contributors:
    Seasholtz, R. (author) / Panda, J. (author)


    Publication date :

    1999-01-01


    Size :

    708404 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Multiple Point Dynamic Gas Density Measurements Using Molecular Rayleigh Scattering

    Seasholtz, R. / Panda, J. / IEEE | British Library Conference Proceedings | 1999


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