Journal
REVIEW OF SCIENTIFIC INSTRUMENTS
Volume 82, Issue 11, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3658822
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We present a scanning laser-sheet video imaging technique to image bi-phasic flow in three-dimensional porous media in real time with pore-scale spatial resolution, i.e., 35 mu m and 500 mu m for directions parallel and perpendicular to the flow, respectively. The technique is illustrated for the case of viscous fingering. Using suitable image processing protocols, both the morphology and the movement of the two-fluid interface, were quantitatively estimated. Furthermore, a macroscopic parameter such as the displacement efficiency obtained from a microscopic (pore-scale) analysis demonstrates the versatility and usefulness of the method. (C) 2011 American Institute of Physics. [doi:10.1063/1.3658822]
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