TY - JOUR

T1 - Rotational particle separation in solutions

T2 - Micropolar fluid theory approach

AU - Shelukhin, Vladimir

N1 - Funding Information: This research was funded by RUSSIAN SCIENCE FOUNDATION Grant No. 20-19-00058. Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2021/4/1

Y1 - 2021/4/1

N2 - 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.

AB - 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.

KW - Micro-polar fluids

KW - Suspensions

KW - Yield stress

UR - http://www.scopus.com/inward/record.url?scp=85103941279&partnerID=8YFLogxK

U2 - 10.3390/polym13071072

DO - 10.3390/polym13071072

M3 - Article

C2 - 33805358

AN - SCOPUS:85103941279

VL - 13

JO - Polymers

JF - Polymers

SN - 2073-4360

IS - 7

M1 - 1072

ER -