Boundary Effects of Light Scattering in Laser Diagnostics of Two-Phase Flows
N. V. Semidetnov
St. Petersburg State Marine Technical University (SPbSMTU)
n.semidetnov@ans.spb.ru
Keywords: two-phase flows, particle size measurement, light scattering, Mie theory, Debye expansion, geometrical optics, surface waves
Pages: 46-53
Abstract
This study is motivated by the advent of methods for measuring particle sizes in twophase flows based on the local interaction of light with the scattering particle. Localization is easily interpreted in terms of the ray optics of a particle, which, however, does not cover all interaction effects. This paper consider effects that extend beyond the traditional concept of the total effect of the mechanisms of geometrical optics and wave diffraction by a particle as an opaque disk, in particular, surface waves and complex rays.. The results of the mathematical modeling performed in this study clarifies the contributions of the effects to the scattering and the position of the localization points of the interaction with the particle.
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