2010•Chinese Physics LettersRequires access

Capillary Rise in a Single Tortuous Capillary

Cai Jian-Chao, Boming Yu, Mei Mao-Fei, Liang Luo

Abstract

The impact of convolutedness of capillary on the capillary rise of wetting liquid in a single tortuous capillary is studied. By introducing tortuosity and fractal dimension for a tortuous capillary, analytical expression for time evolution of the height/weight of capillary rise is obtained. It is found that the accumulated weight of liquid imbibed into a single tortuous capillary is independent of the shape of a capillary in the early rising stage.

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Key concepts: Capillary action, Tortuosity, Capillary number, Wetting, Materials science, Capillary length, Mechanics, Composite material