J. A. Cole (Department of Geodesy and Geo-physics, University of Cambridge, Cambridge, England)-The writer finds the paper most valuable, because he [Cole, 1957] has made experiments with columns of granular material, basically similar to those described by the author, in order to determine the relative importance of: Effect (a) radial molecular diffusion in each pore combined with a velocity gradient across the pore, and Effect (b) the geometry of the pore system in producing a longitudinal dispersion of an injected substance.
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de Jong, G.D.J. (2006). Discussion of ”Longitudinal and transverse diffusion in granular deposits“. In: Schotting, R.J., van Duijn, H.C.J., Verruijt, A. (eds) Soil Mechanics and Transport in Porous Media. Theory and Applications of Transport in Porous Media, vol 19. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-3629-3_25
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DOI: https://doi.org/10.1007/978-1-4020-3629-3_25
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