Fig. 15From: Bohemian sandstone for restoration of cultural heritage sites: 3D microstructure and mass transport propertiesViscous flow in the plane perpendicular to the x-axis when the pressure difference is exerted in the same direction. The first velocity component v1(x) is mapped onto the plane by projecting its relative values. An area of 1 mm2 is shown for the sake of clarity. Naturally, the velocity component v1 is zero in the solid-phase regionBack to article page