Jump to main content
Jump to site search

Issue 36, 2016
Previous Article Next Article

Coupled dynamics of flow, microstructure, and conductivity in sheared suspensions

Author affiliations

Abstract

We propose a model for the evolution of the conductivity tensor for a flowing suspension of electrically conductive particles. We use discrete particle numerical simulations together with a continuum physical framework to construct an evolution law for the suspension microstructure during flow. This model is then coupled with a relationship between the microstructure and the electrical conductivity tensor. Certain parameters of the joint model are fit experimentally using rheo-electrical conductivity measurements of carbon black suspensions under flow over a range of shear rates. The model is applied to the case of steady shearing as well as time-varying conductivity of unsteady flow experiments. We find that the model prediction agrees closely with the measured experimental data in all cases.

Graphical abstract: Coupled dynamics of flow, microstructure, and conductivity in sheared suspensions

Back to tab navigation

Publication details

The article was received on 24 May 2016, accepted on 03 Aug 2016 and first published on 03 Aug 2016


Article type: Paper
DOI: 10.1039/C6SM01199C
Citation: Soft Matter, 2016,12, 7688-7697
  • Open access: Creative Commons BY-NC license
  •   Request permissions

    Coupled dynamics of flow, microstructure, and conductivity in sheared suspensions

    T. Olsen, A. Helal, G. H. McKinley and K. Kamrin, Soft Matter, 2016, 12, 7688
    DOI: 10.1039/C6SM01199C

    This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material and it is not used for commercial purposes.

    Reproduced material should be attributed as follows:

    • For reproduction of material from NJC:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the Centre National de la Recherche Scientifique (CNRS) and the RSC.
    • For reproduction of material from PCCP:
      [Original citation] - Published by the PCCP Owner Societies.
    • For reproduction of material from PPS:
      [Original citation] - Published by The Royal Society of Chemistry (RSC) on behalf of the European Society for Photobiology, the European Photochemistry Association, and RSC.
    • For reproduction of material from all other RSC journals:
      [Original citation] - Published by The Royal Society of Chemistry.

    Information about reproducing material from RSC articles with different licences is available on our Permission Requests page.

Search articles by author

Spotlight

Advertisements