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-   -   Natural circulation through duct. (http://www.cfd-online.com/Forums/openfoam/90583-natural-circulation-through-duct.html)

KTHMS July 14, 2011 10:44

Natural circulation through duct.
 
I'm currently engaged in my master thesis and right now i'm trying to learn openFoam. Currently my simulations crashe due to some time continuity which i think is related to the pressure.

I have a large mesh a duct approx 10 m by 30m which gets narrower at the top. All walls are adiabatic except one that has a higher temperature then the ambient temperature and i am trying to get natural circulation of the air through the duct which is open att the top and bottom.

Any suggestion the boundary conditions for the pressures?

Im using buoyantBoussinesqSimpleFoam.

Thank you.


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