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A method for three-dimensional particle sizing in two-phase flows

Pereira, Francisco and Gharib, Morteza (2004) A method for three-dimensional particle sizing in two-phase flows. Measurement Science and Technology, 15 (10). pp. 2029-2038. ISSN 0957-0233. doi:10.1088/0957-0233/15/10/012.

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A method is devised for true three-dimensional (3D) particle sizing in two-phase systems. Based on a ray-optics approximation of the Mie scattering theory for spherical particles, and under given assumptions, the principle is applicable to intensity data from scatterers within arbitrary interrogation volumes. It requires knowledge of the particle 3D location and intensity, and of the spatial distribution of the incident light intensity throughout the measurement volume. The new methodology is particularly suited for Lagrangian measurements: we demonstrate its use with the defocusing digital particle image velocimetry technique, a 3D measurement technique that provides the location, intensity and velocity of particles in large volume domains. We provide a method to characterize the volumetric distribution of the incident illumination and we assess experimentally the size measurement uncertainty.

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Additional Information:© 2004 IOP Publishing Ltd Received 9 February 2004, in final form 21 June 2004, Published 26 August 2004, Print publication: Issue 10 (October 2004) The visit of Dr F Pereira to the California Institute of Technology was made possible by a fellowship of the Fundac¸ ˜ao para a Ciˆencia e a Tecnologia, Portugal, under the supervision of Professor M V Heitor. The research was supported by the Office of Naval Research (contract N00014-97-1-0303), under the direction of Dr Ed P Rood and Dr Mark Hyman. The defocusing digital particle image velocimetry (DDPIV) technology is protected under a US patent filed by California Institute of Technology.
Subject Keywords:two-phase flows, defocusing digital particle image velocimetry, particle sizing
Issue or Number:10
Record Number:CaltechAUTHORS:PERmst04
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:1667
Deposited By: Archive Administrator
Deposited On:09 Feb 2006
Last Modified:08 Nov 2021 19:12

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