Ohnesorge Number

Ohnesorge number is proportional to { (viscous force) / (sqrt (inertial force . surface tension force)) } and is used in momentum transfer in general and atomization calculations in particular. It is equivalent to (SQRT(We) / Re). It is normally defined in the following form :

 

Ohnesorge Number

 

Where:

gc

=

Dimensional constant

L

=

Characteristic length

mu

=

Viscosity

rho

=

Density

sigma

=

Surface tension

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