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Forum: CFX

June 12, 2009, 08:42

Replies: 5

Multiphase air-water filling problem

Views: 1,600

Posted By ghorrocks

Hi, Yes, VOF in Fluent is equivalent to...

Hi,

Yes, VOF in Fluent is equivalent to Homogeneous multiphase in CFX.

Use Homogeneous if you want the interface to remain sharp. Use inhomogeneous if some mixing (eg foam, bubbly regions)...

Forum: CFX

June 11, 2009, 18:30

Replies: 5

Multiphase air-water filling problem

Views: 1,600

Posted By ghorrocks

Hi, Set the volume fraction smoothing to...

Hi,

Set the volume fraction smoothing to none, use adaptive timestepping homing into 3-6 iterations per timestep.

CFX is poor at this type of analysis, it is very slow. I got a speedup of 30x...

Forum: CFX

June 11, 2009, 06:59

Replies: 5

Multiphase air-water filling problem

Views: 1,600

Posted By ghorrocks

Hi, This area is much improved in V12. Are...

Hi,

This area is much improved in V12. Are you using V12? The new coupled VF solver should work well here (I did lots of beta testing on this feature and I think we ironed out all the bugs! For...

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