000			01604nab a2200217 4500
005			20260520003100.0
008			260224s2012 xxu ing
041			_aInglés
245	0	0	_aPore-Scale Flow Simulations: Model Predictions Compared with Experiments on Bi-Dispersed Granular Assemblies
260			_a _b _csept./oct. 2012
270			_a07/05/2013 ; 07/05/2013
300			_a9 p. ; 743-752
520			_aTraducción del resúmen del autor: A method is presented for the simulation of pore flow in granular materials. The numerical model uses a combination of the discrete element method for the solid phase and a novel finite volume formulation for the fluid phase. The solid is modeled as an assembly of spherical particles, where contact interactions are governed by elasto-plastic relations. Incompressible Stokes flow is considered, assuming that inertial forces are small in comparison with viscous forces. Pore geometry and pore connections are defined locally through regular triangulation of spheres, from which a tetrahedral mesh arises. The definition of pore-scale hydraulic conductivities is a key aspect of this model. In this sense, the model is similar to a pore-network model. Permeability measurements on bi-dispersed glass beads are reported and compared with model predictions, validating the definition of local conductivities.
581			_a5
773	0		_tOil and Gas Science and Technology _g67
942			_cARTICULO
100	1		_aTong, A.T. _953115
100	1		_aCatalano, E. _953116
100	1		_aChareyre, B. _953117
999			_c187662 _d187662