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Filtering by: Academic Affiliation Mathematics Creator Peszynska, Malgorzata Peer Reviewed Yes Resource Type Article Rights Statement Copyright Not Evaluated

Adaptive Double-Diffusion Model and Comparison to a Highly Heterogeneous Micro-Model

Creator:

Klein, Viviane and Peszynska, Malgorzata

Abstract:

Double-diffusion model is used to simulate slightly compressible fluid flow in periodic porous media as a macro-model in place of the original highly heterogeneous micro-model. In this paper, we formulate an adaptive two-grid numerical finite element discretization of the double-diffusion system and perform a comparison between the micro- and macro-model....

Resource Type:

Article
Pore-to-core simulations of flow with large velocities using continuum models and imaging data

Creator:

Peszynska, Malgorzata and Trykozko, Anna

Abstract:

We consider computational modeling of flow with small and large velocities at porescale and at corescale, and we address various challenges in simulation, upscaling, and modeling. While our focus is on voxel-based data sets from real porous media imaging, our methodology is verified first on synthetic geometries, and we analyze...

Resource Type:

Article
Multiscale elliptic-parabolic systems for flow and transport

Creator:

Peszyńska, Malgorzata and Showalter, Ralph E.

Abstract:

An upscaled elliptic-parabolic system of partial differential equations describing the multiscale flow of a single-phase incompressible fluid and transport of a dissolved chemical by advection and diffusion through a heterogeneous porous medium is developed without the usual assumptions of scale separation. After a review of homogenization results for the traditional...

Resource Type:

Article

ScholarsArchive@OSU

Adaptive Double-Diffusion Model and Comparison to a Highly Heterogeneous Micro-Model

Pore-to-core simulations of flow with large velocities using continuum models and imaging data

Multiscale elliptic-parabolic systems for flow and transport

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