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Dynamics of a planar concentrated fiber suspension with non-hydrodynamic interaction
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Lightweight Structures.
1994 (English)In: Journal of Rheology, ISSN 01486055 (ISSN), Vol. 38, no 4, 985-997 p.Article in journal (Refereed) Published
Abstract [en]

Equations for particle motions and bulk stresses are derived based on a balance of frictional contact forces on a test particle. Very high particle concentrations are considered, so that contact forces dominate and hydrodynamic interaction is negligible. The analysis is restricted to homogeneous flows of statistically homogeneous suspensions in which the particles are planarly oriented and straight. An explicit solution is given for the case where the friction force between contacting particles is proportional to their relative velocity. Particle motion is then essentially affine, and stresses are quadratic in both particle concentration and particle aspect ratio.

Place, publisher, year, edition, pages
1994. Vol. 38, no 4, 985-997 p.
Keyword [en]
Aspect ratio, Composition effects, Equations of motion, Fluid dynamics, Friction, Hydrodynamics, Loads (forces), Particles (particulate matter), Rheology, Stresses, Velocity, Bulk stresses, Fluid velocity field, Inter particle contact forces, Non hydrodynamic interaction, Particle aspect ratio, Particle concentrations, Particle motion, Planar concentrated fiber suspension, Relative velocity, Suspensions (fluids)
National Category
Applied Mechanics
URN: urn:nbn:se:kth:diva-80056DOI: 10.1122/1.550539OAI: diva2:495970

Correspondence Address: Toll, Staffan; Ecole Polytechnique Federale de, Lausanne, Lausanne, Switzerland

NR 20140805Available from: 2012-02-09 Created: 2012-02-09 Last updated: 2014-04-08Bibliographically approved

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