Some flows where surface tension is important

7 Some flows where surface tension is important 

The following are some examples of flows where there is an interaction between the viscosity and the surface tension g of Newtonian liquids of viscosity //. In these situations, the relative effect of surface tension may be judged from the so-called Capillary number, G = rjV/g which is the ratio of viscous to surface tension forces. 

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