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.
Multiple point dynamic gas density measurements using molecular Rayleigh scattering
01.01.1999
708404 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Multiple Point Dynamic Gas Density Measurements Using Molecular Rayleigh Scattering
British Library Conference Proceedings | 1999
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