Physical Theory for Capillary Flow Phenomena

  title={Physical Theory for Capillary Flow Phenomena},
  author={Edward E. Miller and R. D. Miller},
  journal={Journal of Applied Physics},
From the assumption that the microscopic behavior of the liquid in an unsaturated porous medium is controlled by the physical laws of surface tension and viscous flow, differential equations governing the macroscopic flow in such a medium are deduced. No special pore‐shape assumptions are required, but one topological approximation is needed; i.e., that neither isolated drops nor isolated bubbles occur. Several nonessential simplifying assumptions are used; i.e., that the macroscopic properties… 

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