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Capillary number
The capillary number represents the relative effect of viscous forces and surface tension acting across an interface between a liquid and a gas, or between two immiscible liquids. It is defined as
where μ is the viscosity of the liquid, v is a characteristic velocity, and σ is the surface or interfacial tension between the two fluid phases.
10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details