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Proceedings Paper

Characterization of a flat fan air-blast atomizer spray by global rainbow refractometry
Author(s): Qi Pan
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Paper Abstract

The characterization of spray behavior especially the droplets parameters are very important for many industrial applications. In this paper, the droplets parameters of a flat fan water spray were measured using a new developed global rainbow refractometry. the global rainbow mechanism of spray is studied in detail. The effects of discrete parameter, distribution function, mean diameter and disperse coefficient on global rainbow of spray are concerned. a new rainbow parameter inversion algorithm of particles is proposed. This algorithm can inverse both particle diameter distribution and refractive index simultaneously, without pre-knowledge of droplets diameter distribution function and range. The algorithm removes the noised using empirical mode decomposition (EMD) method, and inverses the data based on regularized NNLS and regularization method. The experimental measurements are performed on a flat fan air-blast atomizer spray, and the droplets size distribution and the refractive index have been measured under five different gasliquid ratio conditions.

Paper Details

Date Published: 30 November 2011
PDF: 12 pages
Proc. SPIE 8201, 2011 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 82010P (30 November 2011); doi: 10.1117/12.907063
Show Author Affiliations
Qi Pan, Nanjing Univ. of Information Science & Technology (China)


Published in SPIE Proceedings Vol. 8201:
2011 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems
Xinyong Dong; Xiaoyi Bao; Perry Ping Shum; Tiegen Liu, Editor(s)

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