Upscaling non-Darcy flow

CR Garibotti, M Peszyńska - Transport in porous Media, 2009 - Springer
We consider upscaling of non-Darcy flow in heterogeneous porous media. Our approach
extends the pressure-based numerical homogenization procedure for linear Darcy flow, due …

[PDF][PDF] Downscaling: a complement to homogenization

A Trykozko, G Brouwer, W Zijl - International Journal of Numerical …, 2008 - researchgate.net
A groundwater flow model based on a specified hydraulic conductivity field in the modeling
domain has a unique solution only if either the head or the normal flux component is …

[PDF][PDF] A formulation for fully resolved simulation (FRS) of particle–turbulence interactions in two-phase flows

SV Apte, NA Patankar - International Journal of Numerical Analysis and …, 2008 - Citeseer
A numerical formulation for fully resolved simulations of freely moving rigid particles in
turbulent flows is presented. This work builds upon the fictitious-domain based approach for …

Numerical homogenization of two-phase flow in porous media

W Zijl, A Trykozko - Computational Geosciences, 2002 - Springer
Homogenization has proved its effectiveness as a method of upscaling for linear problems,
as they occur in single-phase porous media flow for arbitrary heterogeneous rocks. Here we …

About the symmetry of the upscaled equivalent transmissivity tensor

M Giudici, C Vassena - Mathematical geology, 2007 - Springer
This paper provides a proof of the symmetry of the equivalent transmissivity tensor computed
with a method based on the solution of the balance equation at the fine scale with integrated …

Face-centered and volume-centered discrete analogs of the exterior differential equations governing porous medium flow I: theory

W Zijl - Transport in porous media, 2005 - Springer
This paper presents a 'physics-oriented'approach to approximate the continuum equations
governing porous media flow by discrete analogs. To that end, the continuity equation and …

Modeling of viscous fluid filtration in porous media with cylindrical symmetry

VL Savatorova, AN Vlasov - … , Computations, Applications: An …, 2013 - dl.begellhouse.com
Multiscale homogenization was applied in modeling the Darcy filtration of viscous
incompressible fluid in cylindrical geometry. In the 2D case, components of permeability …

Complementary finite element methods applied to the numerical homogenization of 3D absolute permeability

A Trykozko, W Zijl - Communications in numerical methods in …, 2002 - Wiley Online Library
To be able to use a limited number of relatively large grid cells in numerical oil reservoir
simulators and groundwater models, upscaling of the absolute permeability is frequently …

[PDF][PDF] Scale problems in assessment of hydrogeological parameters of groundwater flow models

M Nawalany, G Sinicyn - Geologos, 2015 - sciendo.com
An overview is presented of scale problems in groundwater flow, with emphasis on
upscaling of hydraulic conductivity, being a brief summary of the conventional upscaling …

Forward and inverse modeling of near-well flow using discrete edge-based vector potentials

W Zijl - Transport in porous media, 2007 - Springer
Homogeneous effective permeabilities in the near-well region are generally obtained using
analytical solutions for transient flow. In contrast, this paper focuses on heterogeneous …