Learning Forum

[Monta]

Hello everyone,

modelling gas liquid flow in a channel using VOF and defining constant mixture velocity and constant gas fraction at inlet leads to constant phase distribution in the channel. I want to define a random scenario which can occur in the reality, which means for example a random distribution of a certain gas fraction at the inlet. I thoguht about UDF which loops through cells and sets a value for gas fraction. Overall the gas fraction resulting at inlet remains constant.

any ideas? 

 

thanks in advance,

 Monta.

[Rob]

Please check the boundary condition requirements and how the VOF model works. Once you've done that have a look at the Eulerian multifluid VOF model.