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Capillary Number
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Water in Oil Monitor

Capillary Number

Capillary number is proportional to { (viscous force) / (surface tension force) } and is used in momentum transfer in general and atomization and 2-phase flow in beds of solids calculations in particular. It is equivalent to (We/Re). It is normally defined in the following form

 

Capillary Number

 

Where:

gc

=

Dimensional constant

mu

=

Viscosity

sigma

=

Surface tension

V

=

Velocity