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Calculation of permeability from 3D tomographic rock images was performed by combining renormalization group approaches (RGA) and lattice Boltzmann method (LBM). Images of sandstone rock samples (i.e., Fontainebleau, Berea, and Sumatera sandstones) with block size of 2563 voxels were used in this study. LBM was applied to calculate permeability of each smallest block (i.e., 64 and 128 voxels) as sub-blocks...
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