Chhabra, R. P. (1998) Rising velocity of a swarm of spherical bubbles in non-Newtonian power law fluids at high Reynolds numbers The Canadian Journal of Chemical Engineering, 76 (1). pp. 137-140. ISSN 0008-4034
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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/cjce.54...
Related URL: http://dx.doi.org/10.1002/cjce.5450760118
Abstract
In this work, a theoretical scheme for estimating the rise velocity of a swarm of spherical bubbles through quiescent power law liquids at high Reynolds number is developed. The inter-bubble interactions have been accounted for by the use of a cell model. The effect of the power law index and the volume fraction of the gas on the rise velocity is elucidated. Depending upon the degree of shearthinning behaviour and the gas fraction, the swarm may rise slower or faster than a single bubble. This behaviour has been explained qualitatively in terms of two competing mechanisms.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to John Wiley and Sons. |
| Keywords: | Bubble Swarms; Rise Velocity; Drag; Power Law Liquids |
| ID Code: | 78764 |
| Deposited On: | 23 Jan 2012 03:34 |
| Last Modified: | 23 Jan 2012 03:34 |
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