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Optical studies of local flow behaviour of a non-Newtonian fluid inside a porous medium

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Abstract

In this study the local flow of a polymeric solution inside a porous medium is studied visually. While the flow is quite uniform for low volume flow rates it shows pronounced nonuniformity for higher volume flow rates. That is to say, only certain preferred passages are taken and these passages change in time (they fluctuate). This flow irregularity is the reason for increased resistance.

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Authors and Affiliations

  1. Physica Meßtechnik GmbH Vor dem Lauch 6 D-70567 Stuttgart, Germany, , , , , , DE

    Markus Müller

  2. Ulrich Brunner GmbH Zellhuber Ring 17–18 D-84307 Essenfelden, Germany, , , , , , DE

    Jürgen Vorwerk

  3. Universität Erlangen-Nürnberg Lehrstuhl für Strömungsmechanik Cauer Straße 4 D-91058 Erlangen, Germany, , , , , , DE

    P. O. Brunn

Authors
  1. Markus Müller
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  2. Jürgen Vorwerk
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  3. P. O. Brunn
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Received: 28 April 1997 Accepted: 30 December 1997

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Müller, M., Vorwerk, J. & Brunn, P. Optical studies of local flow behaviour of a non-Newtonian fluid inside a porous medium. Rheol. Acta 37, 189–194 (1998). https://doi.org/10.1007/s003970050105

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  • DOI: https://doi.org/10.1007/s003970050105

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