Results 271 to 280 of about 18,671,976 (307)

Pore-merging methodology for reactive transport and mineral dissolution in pore-network models

Advances in Water Resources, 2021
Abstract This study proposes a pore-network modeling algorithm to simulate single-phase reactive transport and mineral dissolution in porous media. A novel pore-merging approach is introduced to guarantee the conservation of the most critical variables during the merging process by using correction factors and effective properties for throat ...
Barbara F. Esteves, Paulo L.C. Lage, Paulo Couto, Anthony R. Kovscek   +3 more
openaire   +1 more source

Pore-Network Modeling of Carbonate Acidization

SPE Annual Technical Conference and Exhibition, 2014
Abstract Carbonate reservoirs represent a significant portion of global hydrocarbon reserves. Injecting strong acids around the wellbore of carbonate wells can significantly increase near-wellbore permeability. A pore-network model is developed to capture permeability response of carbonates to acid stimulation.
openaire   +1 more source

Pore network as a model of porous media: Comparison between nonhierarchical and hierarchical organizations of pores

Physical Review E, 2000
A pore network is used as a model of a porous medium with hierarchical and single level organization of the pores. A microscopic diffusion or adsorption process is introduced that permits the study of both temporal evolution and effective properties of transport.
, Vocka, , Dubois
openaire   +2 more sources

Molecular pore network models of nanoporous materials

Physica B: Condensed Matter, 2003
We describe two novel classes of models for molecular pore networks of nanoporous materials, and in particular of carbon-based materials. In the first class of models, the pore networks are generated by the Voronoi tessellation of a solid material, composed of hundreds of thousands of atoms, and by designating a fraction of the Voronoi polyhedra as the
Muhammad Sahimi, Theodore T. Tsotsis
openaire   +1 more source

Pore network modeling of permeability for textile reinforcements

Polymer Composites, 2003
AbstractThe homogenized permeability of textile reinforcement is computed using pore network modeling. The model takes as input a 3D image of the reinforcement, reduced to an array of points, each of them having a binary value designating whether the point lies inside a yarn or in a pore. The array can be acquired by X‐ray micro‐computerized tomography.
J.‐F. Delerue, S. V. Lomov, R. S. Parnas, I. Verpoest, M. Wevers   +4 more
openaire   +1 more source

Pore network modeling of capillary barrier effects: impact of pore sizes

Canadian Geotechnical Journal
Although the working principles of capillary barrier effects (CBEs) have been well explained based on unsaturated soil mechanics, the selection of materials for engineering structures with CBEs mostly relies on designers’ experience or previously reported data, largely due to the lack of understanding of the microscale behavior of CBEs.
Guangyao Li, Liangtong Zhan, Zhihong Zhang, Shuai Zhang, Song Feng   +4 more
openaire   +1 more source

Applications of the Pore Network Model to Food Systems

2013
Although the pore network model is widely used in petroleum reservoir engineering, soil science and catalysis, very few applications of the model to food systems are available. One of the applications is the 1-D geometric network applied to capillary penetration as described above (Gueven and Hicsasmaz 2011).
Alper Gueven, Zeynep Hicsasmaz Katnas
openaire   +1 more source

Pore Detection and modelling with Deep Neural Networks

2020
Federal Institute for Geosciences and Natural Resources, Germany ; The description of drilling probes due to their porosity is an important research subject in terms of searching for nuclear waste repositories. Th current techniques use raster electron microscope pictures together with various edge detection and growing seed algorithms coming from the ...
openaire   +1 more source

Pore-level modeling of isothermal drying of pore networks

Chemical Engineering Journal, 2005
Luis A. Segura, Pedro G. Toledo
openaire   +1 more source

REPRESENTING PORE SHAPES BY APPROPRIATE POLYGONS IN PORE NETWORK MODELS

Journal of Porous Media, 2018
Jian Hou, Bei Wei, Kang Zhou, Qingjun Du
openaire   +1 more source