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Erschienen in: Experiments in Fluids 2/2020

01.02.2020 | Research Article

Engineered transparent emulsion to optically study particulate flows in yield stress fluids

verfasst von: Ahmadreza Rashedi, Guillaume Ovarlez, Sarah Hormozi

Erschienen in: Experiments in Fluids | Ausgabe 2/2020

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Abstract

We have engineered a model suspension consisting of rigid particles and yield stress fluids. The suspending fluid is an emulsion with adjustable density, rheological behavior, and refractive index. We explain the design procedure in detail. The optically transparent emulsion opens the possibility of exploring particle tracking/image velocimetry (PIV/PTV) techniques in studying dynamic flows involving particles in complex fluids. As a proof of concept, we have performed PTV to provide accurate measurements of solid volume fractions for the dispersion of particles in a Taylor–Couette cell.

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Metadaten
Titel
Engineered transparent emulsion to optically study particulate flows in yield stress fluids
verfasst von
Ahmadreza Rashedi
Guillaume Ovarlez
Sarah Hormozi
Publikationsdatum
01.02.2020
Verlag
Springer Berlin Heidelberg
Erschienen in
Experiments in Fluids / Ausgabe 2/2020
Print ISSN: 0723-4864
Elektronische ISSN: 1432-1114
DOI
https://doi.org/10.1007/s00348-019-2858-3

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