Viscous-inertial transition in dense granular suspension

Autor:	Tapia, Franco, Ichihara, Mie, Pouliquen, Olivier, Guazzelli, Élisabeth
Rok vydání:	2022
Předmět:	Condensed Matter - Soft Condensed Matter Physics - Fluid Dynamics
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.129.078001
Popis:	Granular suspensions present a transition from a Newtonian rheology in the Stokes limit to a Bagnoldian rheology when inertia is increased. A custom rheometer which can be run in a pressure or a volume-imposed mode is used to examine this transition in the dense regime close to jamming. By varying systematically the interstitial fluid, shear rate, and packing fraction in volume-imposed measurements, we show that the transition takes place at a Stokes number of 10 independent of the packing fraction. Using pressure-imposed rheometry, we investigate whether the inertial and viscous regimes can be unified as a function of a single dimensionless number based on stress additivity. Comment: 5 pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2202.10641 Zobrazit plný text záznamu View this record from Arxiv