多孔質内非混和性二相流におけるフィンガリングの挙動

抄録

In this study, I observed the behavior of fingering of immiscible two phase flow visualized three dimensional in porous media by utilizing an X-ray computer tomography (CT) scanner. I evaluated the behavior of the substituted interface by using the dimensionless capillary number (Ca). For the experiments, I observed crossover from capillary to viscous fingering for oil-water displacement in packed bed glass beads for logCa = -4.0 to logCa = -3.0. I discussed about characteristics of crossover from capillary to viscous fingering by using distribution of wetting phase saturation for the height.