Optimization of measurement angles for soot aggregate sizing by elastic light scattering, through design-of-experiment theory

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DOIResolve DOI: http://doi.org/10.1016/j.jqsrt.2011.12.004
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TypeArticle
Journal titleJournal of Quantitative Spectroscopy and Radiative Transfer
Volume113
Issue5
Pages355365; # of pages: 11
SubjectCombustion diagnostics; Light scattering; Particles; Inverse analysis
AbstractIn multiangle elastic light scattering (MAELS) experiments, the morphology of aerosolized particles is inferred by shining collimated radiation through the aerosol and then measuring the scattered light intensity over a set of angles. In the case of soot-laden-aerosols MAELS can, in principle, be used to recover the size distribution of soot aggregates, although this involves solving an ill-posed inverse problem. This paper presents a design-of-experiment methodology for identifying the set of angles that maximizes the information content of the angular scattering measurements, thereby minimizing the ill-posedness of the underlying inverse problem. While the optimized angles highlight the physical significance of the scattering regimes, they do not improve the accuracy of size distributions reconstructed from simulated experimental data.
Publication date
LanguageEnglish
AffiliationNRC Institute for Chemical Process and Environmental Technology; National Research Council Canada
Peer reviewedYes
NRC number53046
NPARC number20603073
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Record identifier3cd7ec40-8cea-4623-aa13-e76148a29562
Record created2012-09-13
Record modified2017-03-23
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