[sircorp]

Originally Posted by izumi11

Hi thank you for your reply. My fluid is as follows :
-two inlets, one with hydrogen+h2o, one with air
-one outlet.
For the moment I am only interested in the flow so I am ok with a single species, single phase simulation.

The problem is I have spread the fluid into several different contiguous zones. Some of which are porous. Therefore I can't merge them at the cad level. Ansys should handle it. So the outlet and the inlets are in different zones.

What I get is the interface between inlet and outlet becomes a wall under Fluent and the continuity residual never decreases as a result (obviously) because the fluid can't escape.
There should be a way to automate this process. I can't prescribe every fluid interface since there is a large number of zones. I know that the mesher in workbench resolves contacts, but it seems it creates wall b.c. where it should be an interface. Is there a way to tell ansys that a contact between two fluids should be an interface whereas a contact between a fluid and a solid should be a wall?

Hope I was clear enough.
Thanks

How did you get over the Multiple Fluid Zone problem ? I am having same issue.
I have several fluid zone sitting top of one another.

Does Fluent Allow to set Separate fluid zone. Remember I am not talking Single Zone with Multiple Fluid. I am talking Multiple Zone with each zone having its own fluid.

Any response will he highly appreciate.

SHANE

[landerfwc]

While creating mesh, have you checked that it is a CFD preference, not Mechanical as a default value?

[landerfwc]

Or if you have more parts, try to FORM NEW PART, which will contain all of your former parts (by selecting them and right click) in Design Modeler. Then you should be able to create different type of meshes over your parts with no impermeable interface between them.

[Abhii9]

I am facing problem in geometry section..
I am getting warning: 'zones are not connected from N_tab to P_tab correctly'
Anyone help me

[vinerm]

These are not fluid zone, but solid tabs. You can either do the connections at Geometry level or use a file to do these connections in Fluent.