Modelling Polymers as Compressible Elastic Spheres in Couette Flow

  • Donglin Xie Department of Chemical and Biomolecular Engineering, University of Melbourne, VIC 3010, Australia
  • Dave E. Dunstan Department of Chemical and Biomolecular Engineering, University of Melbourne, VIC 3010, Australia http://orcid.org/0000-0002-9931-010X

Abstract

A model of polymer chains as compressible elastic spheres in flow is presented. The spherical polymer blobs are assumed to compress in simple Couette flow in accord with recent rheo-optic measurements on semi-dilute solutions. The experimentally determined decrease in radius with increasing shear rate is predicted by the model. Furthermore, the model predicts power law exponents for the viscosity-shear rate within the range of measured values for polymer chains.

Author Biography

Dave E. Dunstan, Department of Chemical and Biomolecular Engineering, University of Melbourne, VIC 3010, Australia

David Dunstan is currently involved in several areas including Nano and Biomolecular Engineering, Nanostructured Materials, Microfluidics, Biophysics and Drug delivery. He is Member of the Particulate Fluids Processing Centre, and Assistant Dean of Transition & Diversity for the Melbourne School of Engineering.

Published
2017-03-02
How to Cite
XIE, Donglin; DUNSTAN, Dave E.. Modelling Polymers as Compressible Elastic Spheres in Couette Flow. Substantia, [S.l.], v. 1, n. 1, p. 43-48, mar. 2017. ISSN 2532-3997. Available at: <http://riviste.fupress.net/index.php/subs/article/view/10>. Date accessed: 25 nov. 2017. doi: https://doi.org/10.13128/Substantia-10.
Section
Research Articles