PROCESS ASSOCIATES
Eötvös Number
PROCESSASSOCIATES.COM
 
Water in Oil Monitor

Eötvös Number

Eötvös number is proportional to { (gravitational force) / (surface tension force) } and is used in momentum transfer in general and atomization, and motion of bubbles and droplets calculations in particular. It is equivalent to (Bo). It is normally defined in the following form :

 

Eötvös Number

 

Where:

 

L

=

Characteristic length

 

rho

=

Density of bubble/droplet

 

rho_f

=

Density of surrounding fluid

sigma

=

Surface tension