Hello,
have a look at a glass of sparkling water or beer. When you observe it over a period of time and the initial heavy sparkling ceased you see a few stationary points, from which very tiny gas-bubbles evolve. Roughly 10 per second. I took a slomo-film with my IPhone 6 (240 fps). They raise up and grow in diamenter roughly by a factor of 2 per cm. Hydrostatic pressure release is only a few Pa, which should not be the reason.
If diamenter grows by a factor of 4, the volume grows by a factor of 60. How do the bubbles grow so rapidly in spite of the fact, that CO2 will have to diffuse against the concentration gradient.
Regards
Lothar
Perhaps this paper answers your question:
https://www.cambridge.org/core/journals/journal-of-fluid-mechanics/article/the-quasi-static-growth-of-co2-bubbles/11A7BA0D816F1FFF93D99F87D05D0810
Hi Lothar, hereunder you can find an interesting analysis of beer bubble dynamics:
http://scitation.aip.org/content/aip/magazine/physicstoday/article/44/10/10.1063/1.881294
Thank you all for the good info. Reading all this will take a while. But ma question isd adressed in ths papers precicely.
Thanks again
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