## Ak(rrcL-Bubbk nse and hquld boldup are reported for honzonti and mchned tubes Theorehcaltreatment IS shown to be applreable for the honzontal and veWcal bubbk nse case and a method IS outlmed for the caleulatroa of bubble nse for sn@es between these two extreme cases up to the pomt where surfac
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.
📜 SIMILAR VOLUMES
Velocity measurements were made on single cylindrical air bubbles rising in a variety of liquids contained in vertically mounted tubes sealed at the lower end. A general graphical correlation iniolving Fr = ua/gd, Eb = pgdz/u and Y = gcc4/pos is given. It is shown that &ous effects are of minor impo