Conclusions
The results of this work suggest that the use of two-dimensional porous medium cells aligned in the vertical plane affords a promising experimental technique for studying the very significant effects that buoyancy forces are capable of exerting on the stability of liquid/liquid displacement processes in porous media. The cell described here is relatively easy to use and permits a wide range of cell orientations, flow modes, injection points, and recovery points to be investigated. Detailed quantitative studies involving a wide range of fluids, flowrates, and flow modes, are currently under way and will be reported in due course.
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Page, C.A., Brooks, H.J. & Neale, G.H. Visualization of the effects of buoyancy on liquid-liquid displacements in vertically-aligned porous medium cells. Experiments in Fluids 14, 472–474 (1993). https://doi.org/10.1007/BF00190202
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DOI: https://doi.org/10.1007/BF00190202