X-ray CT analysis of pore structure in sand

摘要: Abstract. The development of microfocused X-ray computed tomography (CT) devices enables digital imaging analysis at the pore scale. applications these are diverse in soil mechanics, geotechnical and geoenvironmental engineering, petroleum agricultural engineering. In particular, space porous media has contributed to numerical simulations for single-phase multiphase flows or contaminant transport through structure as three-dimensional image data. These obtained results affected by diameter; therefore, it is necessary verify preprocessing validate diameters from CT Moreover, meaningful produce physical parameters a representative element volume (REV) significant define dimension REV. This paper describes underlying method processing discusses properties Toyoura sand verification based on definition On basis results, pore-diameter can be conducted validated comparison with experimental work analysis. diameter deduced Young–Laplace's law water retention test drainage process. previous study perforated-pore originally proposed this study, called voxel-percolation (VPM), compared paper. addition, limitations REV, diameter, effectiveness VPM an assessment discussed.