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June 11, 2010, 13:12 |
Volume fraction in vof
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#1 |
New Member
EYITAYO AFOLABI
Join Date: Apr 2009
Posts: 10
Rep Power: 17 |
l am working of a gas-liquid simulation using VOF.
is it right to pass the 2 phases simultaneously through my single inlet? How do l set my volume fraction for the secondary phase? There was a suggestion that someone should pass a phase throgh the inlet and put the volume fraction equal 0 or 1 depending on whether is a primary or secondary, ?( but, l a little bit confuse about what to do) in summary, l have a 2 phase simulation known to be stratified flow and l am using VOF. How do l set my boundary condition? Thanks. |
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June 11, 2010, 15:51 |
vof inlets
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#2 | |
Senior Member
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hi,
if your physical condition is such that there are 2 phases entering the system..so be it..put liquid as primary and air secondary. so, inlet bc - vof of liquid = say 0.5, air will automatically be taken as 1-0.5~0.5 if there is too much mixing - use multifluid - else for trackign interfaces strat flows, use VOF. you should see good results. btw are you using fluent 6.2 or 6.3? try using CICSAM approach in 6.3 - its interface capturing is better than the geo scheme. /CFDtoy Quote:
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