I am using Fluent for simulating multiphase flow (gas-liquid) inside micro channels (0.1-16 microns). I have a problem in making water (as wetting fluid/hydrophilic) flowing as a film on the insid the wall of the channel. Please could anyone help with this one?
Faaiz Alshajalee If you are talking about the liquid film responsible for wall-slip, I believe that is defined in the wall boundary conditions. As a default, FLUENT considers a no-slip boundary condition, however you are able to specify alternative boundary conditions as well.
Refer to:
http://www.afs.enea.it/project/neptunius/docs/fluent/html/ug/node250.htm
Alireza Meghdadi Thank you. What am trying to do here is making the water film flowing on the inside wall of the channel whereas the gas phase flows in the core of the channel. Please see the attched file.
I would suggest trying to define wall slip in the wall boundary condition and see where that leads you.
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