Print Email Facebook Twitter Shear Thickening in Non-Brownian Suspensions: An Excluded Volume Effect Title Shear Thickening in Non-Brownian Suspensions: An Excluded Volume Effect Author Picano, F. Breugem, W.P. Mitra, D. Brandt, L. Faculty Mechanical, Maritime and Materials Engineering Department Process and Energy Date 2013-08-27 Abstract Shear thickening appears as an increase of the viscosity of a dense suspension with the shear rate, sometimes sudden and violent at high volume fraction. Its origin for noncolloidal suspension with non-negligible inertial effects is still debated. Here we consider a simple shear flow and demonstrate that fluid inertia causes a strong microstructure anisotropy that results in the formation of a shadow region with no relative flux of particles. We show that shear thickening at finite inertia can be explained as an increase of the effective volume fraction when considering the dynamically excluded volume due to these shadow regions. To reference this document use: http://resolver.tudelft.nl/uuid:bb3efe10-704f-4201-806a-63ca4c744ee3 DOI https://doi.org/10.1103/PhysRevLett.111.098302 Publisher American Physical Society ISSN 0031-9007 Source http://link.aps.org/doi/10.1103/PhysRevLett.111.098302 Source Physical Review Letters, 111 (9), 2013 Part of collection Institutional Repository Document type journal article Rights © 2013 American Physical Society Files PDF Breugem_2013.pdf 846.4 KB Close viewer /islandora/object/uuid:bb3efe10-704f-4201-806a-63ca4c744ee3/datastream/OBJ/view