Phase choosing in Volume of Fluid Method
 

Hello,

I am doinfg the simulation of buuble column. The air is coming from the bottom of the contener. Already stgnant water is 2/3 in the contener.
So, Can anyone say me which is my secondary phase. I want to study of air-bubble motion.

Please suggest me.

With Regards,
Gitesh.

phases
 

Liquid - primary phase
Air - Secondary Phase

Thank you,

Can you say me about the surface tension in present case in detail.

With regards,
Gitesh.

surf tension
 

use value of 0.072. btw, this is important when the scales are pretty low ..curvature effects are dominant only at small scales..the values for the size you are looking can be off by 10-15% ..the difference one would notice with varying surface tension is the nature of liquid-air bubble interface..like increased or decreased interfacial corrugations ..