Author(s)

Todd Arbogast, Susan E. Minkoff & Philip T. Keenan

Abstract

Permeability and porosity parameters of a porous medium are known only in a statistical sense. For risk assessment, one must perform multiple flow simulations of a single site, varying these input parameters. Because mul- tiple simulations of large sites are computationally prohibitive, upscaling from fine to coarse scales is necessary. Traditional upscaling techniques de- termine a new effective or upscaled permeability field defined on a coarser scale, which is then used in a standard coarse grid discretization operator. We develop here a method of determining a new coarse grid discretization operator that provides an upscaled solution but bypasses the dete

Keywords