Evaluation of liquid-phase thermometry in impinging jet sprays using synchrotron x-ray scattering

Liquid thermometry during primary and secondary breakup of liquid sprays is challenging due to the presence of highly dynamic, optically complex flow features. This work evaluates the use of x-ray scattering from a focused, monochromatic beam of the Advanced Photon Source at Argonne National Laborat...

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Bibliographic Details
Published in:Applied optics (2004) 2021-04, Vol.60 (11), p.2967
Main Authors: Rahman, N, Halls, B R, Matusik, K E, Meyer, T R, Kastengren, A L
Format: Article
Language:English
Subjects:
ENGINEERING
Evaluation
Jet impingement
Liquid phases
Multiphase flow
Photon beams
Regression models
Synchrotron radiation
Synchrotrons
Temperature
Thermometry
X-ray scattering
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Summary:Liquid thermometry during primary and secondary breakup of liquid sprays is challenging due to the presence of highly dynamic, optically complex flow features. This work evaluates the use of x-ray scattering from a focused, monochromatic beam of the Advanced Photon Source at Argonne National Laboratory for the measurement of liquid temperatures within the mixing zone of an impinging jet spray. The measured scattering profiles are converted to temperature through a previously developed two-component partial least squares (PLS) regression model. Transmitive mixing during jet merging is inferred through spatial mapping of temperatures within the impingement region. The technique exhibits uncertainties of ±2 in temperature and 2% in capturing the correct scattering profile, showing its potential utility for probing liquid temperature distributions in multiphase flows.
ISSN:1559-128X
2155-3165
DOI:10.1364/AO.417796