Abstract
The rise of a gas bubble in a viscous liquid at high Reynolds number is investigated, it being shown that in this case the irrotational solution for the flow past the bubble gives a uniform approximation to the velocity field. The drag force experienced by the bubble is calculated on this hypothesis and the drag coefficent is found to be 32/R, where R is the Reynolds number (based on diameter) of the bubbles rising motion. This result is shown to be in fair agreement with experiment.The theory is extended to non-spherical bubbles and the relation of the resulting theory, which enables both bubble shape and velocity of rise to be predicted, to experiment is discussed.Finally, an inviscid model of the spherical cap bubble involving separated flow is considered.
Publisher
Cambridge University Press (CUP)
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics
Reference9 articles.
1. Hartunian, R. A. & Sears, W. R. 1957 J. Fluid Mech. 3,27.
2. Lamb, H. 1932 Hydrodynamics ,6th ed. Cambridge University Press.
3. Moore, D. W. 1958 Ph.D. Thesis,Cambridge University.
4. Davies, R. & Taylor, G. I. 1950 Proc. Roy. Soc. A,200,375.
5. Batchelor, G. K. 1956 J. Fluid Mech. 1,388.
Cited by
214 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献