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Applied Rheology

Editor-in-Chief: Fischer, Peter / Kröger, Martin

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Volume 11, Issue 6


Combined Method for Quantitative Characterisation of Fluid Flow

Yatchko Ivanov
  • Corresponding author
  • Bulgarian Academy of Sciences, Central Laboratory of Physico-Chemical Mechanics 1 Acad. G. Bonchev str., 1113 Sofia, Bulgaria
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  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Vasil Kavardjikov
  • Bulgarian Academy of Sciences, Institute of Mechanics, 4 Acad. G. Bonchev str., 1113 Sofia, Bulgaria
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Dessislava Pashkuleva
  • Bulgarian Academy of Sciences, Institute of Mechanics, 4 Acad. G. Bonchev str., 1113 Sofia, Bulgaria
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  • De Gruyter OnlineGoogle Scholar
Published Online: 2019-05-30 | DOI: https://doi.org/10.1515/arh-2001-0018


A method has been proposed for quantitative characterization of the flow behaviour of fluids, which is an important problem of applied rheology. Particle Image Velocimetry technique has been used for visualization and measurement of the velocity field. The rheometric study of the fluid is aimed at determining the character of the flow and its dynamic viscosity. It is shown that the experimental data obtained for the velocity field and the viscosity are necessary and sufficient for determining the shear stress field at each point of the flow bulk. The major part of the investigations are performed using a Newtonian fluid (epoxy resin), but some data for the non-Newtonian fluid (solution of xantan) are shown too. The flow is produced by gravity in a system of tubes (a barrel and a capillary) with different round crossections. The possibility of further improvement of the combined rheo-optical method is shown.

Keywords: fluid flow characterization; Particle Image Velocimetry; rheological measurement; velocity profile; shear stress profile


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About the article

Received: 2001-03-16

Accepted: 2001-10-02

Published Online: 2019-05-30

Published in Print: 2001-12-01

Citation Information: Applied Rheology, Volume 11, Issue 6, Pages 320–324, ISSN (Online) 1617-8106, DOI: https://doi.org/10.1515/arh-2001-0018.

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© 2001 Yatchko Ivanov et al., published by Sciendo. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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