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Rise of Liquids and Bubbles in Angular Capillary Tubes

✍ Scribed by José Bico; David Quéré


Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
77 KB
Volume
247
Category
Article
ISSN
0021-9797

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✦ Synopsis


We discuss the rise of a liquid inside an angular capillary tube. It is shown that for a wetting liquid, the height of the rise is (as usually) inversely proportional to the length which characterizes the confinement. The exact laws deduced from energetic considerations are found to be in excellent agreement with the data. We then show how such tubes can be used to prevent bubbles from being trapped. The rising velocity of a bubble is finally discussed, in the particular case of a square tube.


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