Rotational particle separation in solutions: Micropolar fluid theory approach

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Abstract

We develop a new mathematical model for rotational sedimentation of particles for steady flows of a viscoplastic granular fluid in a concentric-cylinder Couette geometry when rotation of the Couette cell inner cylinder is prescribed. We treat the suspension as a micro-polar fluid. The model is validated by comparison with known data of measurement. Within the proposed theory, we prove that sedimentation occurs due to particles’ rotation and rotational diffusion.

Original languageEnglish
Article number1072
JournalPolymers
Volume13
Issue number7
DOIs
Publication statusPublished - 1 Apr 2021

Keywords

  • Micro-polar fluids
  • Suspensions
  • Yield stress

OECD FOS+WOS

  • 2.05 MATERIALS ENGINEERING
  • 1.04 CHEMICAL SCIENCES
  • 1.04.UY POLYMER SCIENCE

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