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Symmetry assessment of an air-blast atomizer sprayThis study represents an evaluation of the extent to which conventional and recently introduced modern diagnostics can assess the symmetry of sprays formed by three atomizers of identical design. The conventional diagnostics include sheet-lit photography, patternation, and laser diffraction. The modern diagnostic is laser interferometry (phase Doppler). Symmetry is assessed in ambient conditions for four atomizer orientations, and comparisons are made between the diagnostic techniques. The results demonstrate that conventional and modern diagnostics are consistent in the assessment of symmetry, patternation and phase Doppler are most effective in establishing symmetry of mass flux, and phase Doppler, although more tedious to employ, provides the additional information necessary to establish the sources of detected asymmetries in terms of nonuniformities in droplet velocities, size distributions, volume flux, and concentration.
Document ID
19900053875
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Mcdonnell, V. G.
(California Univ. Irvine, CA, United States)
Cameron, C. D.
(California Univ. Irvine, CA, United States)
Samuelsen, G. S.
(California, University Irvine, United States)
Date Acquired
August 14, 2013
Publication Date
August 1, 1990
Publication Information
Publication: Journal of Propulsion and Power
Volume: 6
ISSN: 0748-4658
Subject Category
Fluid Mechanics And Heat Transfer
Accession Number
90A40930
Funding Number(s)
CONTRACT_GRANT: F08635-86-C-0309
CONTRACT_GRANT: NAS3-24350
Distribution Limits
Public
Copyright
Other

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