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Planar Laser Imaging of Sprays for Liquid Rocket Studies

Author
Ryan, H. M.
Published
November 1, 1990.
Physical Description
1 electronic document
Additional Creators
Lee, W., Pal, S., Strakey, P. A., and Santoro, Robert J.
Online Version

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Summary
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.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19920002833.
Accession ID: 92N12051.
JHU, The 27th JANNAF Combustion Subcommittee Meeting, Volume 1; p 611-621.
27th JANNAF Combustion Subcommittee Meeting; 5-9 Nov. 1990; Cheyenne, WY; United States.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15678480