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An experimental investigation was carried out on mobilization and very slow flow of oil slugs in a capillary tube. The pressure drop of the slug flow was measured at every stage of mobilizing and moving the oil slugs as a function of capillary number in the range of 4 × 10−7–6 × 10−6. The pressure drop across the oil slug experienced three stages: build-up, hold-up, and steady stages. During the build-up...
In this article we extend the analytical solution for viscous flow in an equilateral triangular tube to irregular triangular tubes. The validity of the solution is examined and proved by comparison with the numerical simulation results. With the new extension of the equations, the average velocity of viscous flow through an arbitrary triangular tube can be readily calculated as a function of inscribed...
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