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Issue 28, 2014
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Inertial rise in short capillary tubes

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The behavior of liquid that rises to the top of a short tube depends on the Weber number We defined as the ratio of the kinetic energy of the liquid and a reference surface energy. In optimal experiments with diethyl ether, the meniscus of the rising liquid inverts and spreads onto the external surface of the tube when We ≳ 1. If We ≲ 1, the meniscus remains pinned at the top of the tube. For inertial capillary rise dynamics the maximum kinetic energy is achieved when the height of the liquid column is 3/4 of the equilibrium rise height and diverges with decreasing gravitational acceleration.

Graphical abstract: Inertial rise in short capillary tubes

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Publication details

The article was received on 20 Jan 2014, accepted on 10 Mar 2014 and first published on 13 Mar 2014

Article type: Communication
DOI: 10.1039/C4RA00580E
Citation: RSC Adv., 2014,4, 14781-14785
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    Inertial rise in short capillary tubes

    O. Shardt, P. R. Waghmare, J. J. Derksen and S. K. Mitra, RSC Adv., 2014, 4, 14781
    DOI: 10.1039/C4RA00580E

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