Global ETD Search
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Showing 1 to 8 of 8 for “"Representative elementary volume"”.
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Multi-GPU Based Lattice Boltzmann Flow Simulations in Porous Media
… provides solutions at both pore scale and representative elementary volume (REV) scale based on the resolution of digital rock images. Petrophysical properties such as absolute permeability and relative permeability at multiscale are evaluated from the numerical results. The proposed …
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Extraction of physically-realistic pore network properties from three-dimensional synchrotron microtomography images of unconsolidated porous media
… porosity, specific surface area, and representative elementary volume (REV) analysis of porosity were calculated. The impact of resolution was investigated using perfect glass bead and natural sand systems. Finally, semivariograms and integral scale concepts were used as a tool to …
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Computer vision and texture analysis for characterization of X-ray images of rocks
… of grayscale micro-CT images to infer representative elementary volumes (REVs). First, gray-level intensity-based segmentation fails to distinguish pore-spaces with different geometrical characteristics (fractures and granular-pores) because the same gray-level intensities represent …
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Nonequilibrium Phenomena in Multiphase Flow, Transport, and Phase Change in Porous Media: Pore-Level Physics, Network Modeling, and Upscaling
… pore-scale (e.g., nanometer to millimeter), to representative-elementary-volume (REV)-scale (e.g., centimeter to meter), to field-scale (e.g., meter to kilometer). To date, most field-scale models are built upon the thermodynamic equilibrium assumption at the REV-scale. However, this assumption …
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Study of mechanical properties of jointed rock mass using lattice-spring-based synthetic rock mass (LS-SRM) modeling approach
… modulus is investigated to determine the representative elementary volume (REV) of the rock mass. Using the REV sized rock mass, the influence of discontinuity intensity and confining pressure on the mechanical properties (strength & deformability) of jointed rock masses are also …
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Using 3D Tomography to Understand Fluid-Fluid Interface Evolution in Porous Media for Carbon Sequestration Applications
… the first set of experiment, we investigated the representative elementary volume (REV) for a set of fundamental physical parameter measurements such as porosity and specific interfacial area; and topological measures including Betti numbers and the corresponding Euler characteristic that are …
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Using 3D Tomography to Understand Fluid-Fluid Interface Evolution in Porous Media for Carbon Sequestration Applications
… the first set of experiment, we investigated the representative elementary volume (REV) for a set of fundamental physical parameter measurements such as porosity and specific interfacial area; and topological measures including Betti numbers and the corresponding Euler characteristic that are …
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Processes controlling the behavior of LNAPLs at groundwater surface water interfaces
… of these failures is advanced through a volume balance on a representative elementary volume (REV) of porous media at a GSI. Key factors controlling releases to surface water include inflows, natural losses, enhanced losses, and recovery of LNAPL in the REV. Furthermore, the timing of …