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Proceedings Paper

One-beam digital speckle interferometry applied to semimentation in fluids investigations
Author(s): Ilia Roussev; Evtim Toshev; Pavel I. Koulev; Todor Partalin; Violeta Madjarova
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Paper Abstract

A fully-automated version of the Speckle Photography based on the Fast Fourier Transform, the One-Beam Digital Speckle- Interferometry, is used for investigation of sedimentation. The study is carried out with a Hele-Show cell. Both qualitative and quantitative results of slow sedimentation of spherical glass particles in mineral oil are presented. In the present article the processes of so called `fingers' formation and its development (the sedimentation front already lost its stability) are investigated. The authors paid also attention to the uniform sedimentation after the fingers fall down on the cell's bottom.

Paper Details

Date Published: 19 August 1998
PDF: 4 pages
Proc. SPIE 3573, OPTIKA '98: 5th Congress on Modern Optics, (19 August 1998); doi: 10.1117/12.321030
Show Author Affiliations
Ilia Roussev, Institute of Mechanics (Bulgaria)
Evtim Toshev, Institute of Mechanics (Bulgaria)
Pavel I. Koulev, Institute of Mechanics (Bulgaria)
Todor Partalin, Sofia Univ. (Bulgaria)
Violeta Madjarova, Institute of Mechanics (Bulgaria)

Published in SPIE Proceedings Vol. 3573:
OPTIKA '98: 5th Congress on Modern Optics
Gyorgy Akos; Gabor Lupkovics; Andras Podmaniczky, Editor(s)

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