Velocity profiles in axisymmetrical draining films
โ Scribed by S. Hartland
- Publisher
- Elsevier Science
- Year
- 1971
- Tongue
- English
- Weight
- 189 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0009-2509
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๐ SIMILAR VOLUMES
The exact method is presented to obtain a turbulent velocity profile using the eddy viscosities of Deissler and yon Karman for vertical film flows. As a result, the physical inconsistencies associated with the conventional logarithmic velocity profile can be removed in tow.
A mathematical model is constructed to describe the two-dimensional flow in a vertical soap film that is draining under gravity. An asymptotic analysis is employed that uses the longwave or "lubrication" approximation. The modeling results in three coupled partial differential equations that include