Publication Date:
2019-08-13
Description:
A planar laser imaging technique which incorporates an optical polarization ratio technique for droplet size measurement was studied. A series of pressure atomized water sprays were studied with this technique and compared with measurements obtained using a Phase Doppler Particle Analyzer. In particular, the effects of assuming a logarithmic normal distribution function for the droplet size distribution within a spray was evaluated. Reasonable agreement between the instrument was obtained for the geometric mean diameter of the droplet distribution. However, comparisons based on the Sauter mean diameter show larger discrepancies, essentially because of uncertainties in the appropriate standard deviation to be applied for the polarization ratio technique. Comparisons were also made between single laser pulse (temporally resolved) measurements with multiple laser pulse visualizations of the spray.
Keywords:
INSTRUMENTATION AND PHOTOGRAPHY
Type:
27th JANNAF Combustion Subcommittee Meeting; Nov 05, 1990 - Nov 09, 1990; Cheyenne, WY; United States|JHU, The 27th JANNAF Combustion Subcommittee Meeting, Volume 1; p 611-621
Format:
application/pdf
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