The rise of small bubbles in water
作者:
Carl Bachhuber,
Cecil Sanford,
期刊:
Journal of Applied Physics
(AIP Available online 1974)
卷期:
Volume 45,
issue 6
页码: 2567-2569
ISSN:0021-8979
年代: 1974
DOI:10.1063/1.1663630
出版商: AIP
数据来源: AIP
摘要:
Contrary to the conclusions of previous researchers who found the drag coefficients of small bubbles in water to coincide with those expected for solid spheres, we found the drag coefficients of small bubbles in water (Reynolds numbers from 2 to 40) to be significantly less than those expected for solid spheres and close to what we expect are the drag coefficients for ideal fluid spheres. The difference between the present results and those of previous workers is ascribed to velocity measurements nearer to the point of formation, thus giving the surface of a bubble less time to age and collect surfactants.
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