Figure 5
(a) Locations/slices for MRI imaging with (b) 3D schematic illustrating the position and plane of slices. Slice 1 is located closer to the front section of the sample. (c) MRI images during the ice melting process for glass beads with a size of 100–200 μm. (d) Variation in dimensionless radial position of the melting front (rmf/ro) and water saturation as a function of melting time based on MRI and NMR data for glass beads with size of 100–200 μm. An average value for rmf/ro is taken for MRI images at different cross-sections. (e) Normalized signal intensity as a function of radial distance from the sample centre at t = 33 min, t = 54 min and t = 73 min (i.e., after complete ice melting) for slice 2.
