6533b862fe1ef96bd12c6439
RESEARCH PRODUCT
Simulations of non-spherical particles suspended in a shear flow
Jussi TimonenP. RaiskinmäkiAri JäsbergMarkku KatajaAntti KoponenA. Shakib-maneshsubject
DilatantMaterials scienceLattice Boltzmann methodsGeneral Physics and AstronomyThermodynamicsReynolds numberMechanicsShear ratePhysics::Fluid DynamicsCondensed Matter::Soft Condensed Mattersymbols.namesakeShear (geology)RheologyHardware and ArchitecturesymbolsShear flowBrownian motiondescription
The lattice-Boltzmann method was used to investigate the effects of the shape and concentration of the particles on the rheological properties of non-Brownian suspensions for non-zero Reynolds numbers. Several case studies were analyzed and the methods used were found to give accurate predictions for these systems. The viscosity of suspensions of both spherical and non-spherical particles was determined as functions of shear rate and concentration of particles. It was shown that, for high shear rates, shear thickening appears. This phenomenon is particularly pronounced for particles of irregular shape.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2000-07-01 |