Rheology of Confined Non-Brownian Suspensions
Number of Authors: 6
2016 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 116, no 1, 018301Article in journal (Refereed) Published
We study the rheology of confined suspensions of neutrally buoyant rigid monodisperse spheres in plane-Couette flow using direct numerical simulations. We find that if the width of the channel is a (small) integer multiple of the sphere diameter, the spheres self-organize into two-dimensional layers that slide on each other and the effective viscosity of the suspension is significantly reduced. Each two-dimensional layer is found to be structurally liquidlike but its dynamics is frozen in time.
Place, publisher, year, edition, pages
2016. Vol. 116, no 1, 018301
IdentifiersURN: urn:nbn:se:su:diva-126375DOI: 10.1103/PhysRevLett.116.018301ISI: 000367784300020OAI: oai:DiVA.org:su-126375DiVA: diva2:902973