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-   -   Boundary conditions (http://www.cfd-online.com/Forums/fluent/27843-boundary-conditions.html)

Arturo Ortiz August 17, 2000 14:23

Boundary conditions
 
Hi everybody, I am trying to implement a model on a rectangular geometry that is divided in several smaller rectangular parts, each subpart is a kind of fluid, in particular some are liquids but some are porous media (fluent treats porous media as fluids). I've tryed to solve the problem but it gives me non realistic results. For example it gave me very different pressure profiles when I simplify the problem so all the regions have the same properties (all liquids or all porous). I think it is due to the boundary conditions I use. I am using interface boundary types for the small rectangle joints and inlet velocity for the liquid that enters to the system. Is it correct? Do I have to use another kind? Also the code gave me a lot of "ACCESS VIOLATION" errors when I try to solve the problem. Only with the PRESTO discretizer it works but it does not converge. Any help or comentary will be very appreciated.

Thanks to all


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