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A numerical investigation of the rheology of sheared fiber suspensions
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences, Engineering and Mathematics.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences, Engineering and Mathematics.
2009 (English)In: Physics of fluids, ISSN 1070-6631, E-ISSN 1089-7666, Vol. 21, no 8, p. 083301-Article in journal (Refereed) Published
Abstract [en]

Particle-level simulations are performed to study the rheology of monodispersed non-Brownian fibers suspended in a Newtonian fluid in shear flow. The effects of fiber aspect ratio, concentration, and interparticle friction on the stress tensor of the suspension in the steady state and on the tendency of fiber agglomeration are investigated. Semiempirical expressions for the steady state apparent shear viscosity and the steady state first and second normal stress difference were obtained for the case of well dispersed suspensions in the nonconcentrated regimes. The simulation predictions of the specific viscosity were in fair agreement with previous experimental investigations.

Place, publisher, year, edition, pages
2009. Vol. 21, no 8, p. 083301-
Keywords [en]
Fibre suspension, Rheology, Simulation
National Category
Chemical Engineering Other Engineering and Technologies
Identifiers
URN: urn:nbn:se:miun:diva-8583DOI: 10.1063/1.3195456ISI: 000270456500016Scopus ID: 2-s2.0-70049091391OAI: oai:DiVA.org:miun-8583DiVA, id: diva2:173832
Projects
The forest as a resourceAvailable from: 2009-02-17 Created: 2009-02-17 Last updated: 2017-12-13Bibliographically approved

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Lindström, StefanUesaka, Tetsu

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