[yipseng]

I'm doing my final year project on Natural Convection in fin array.. I investigate the Natural Convection of the air domain. I created 3D volume of air which partial of the face of that air volume is fin wall and base which temp constant, i set th BC as below:

Fin wall -Wall (constant temp 400K)
Fin base -Wall (constant temp 400K)
Other surface = Pressure inlet and outlet randomly (both oso "0" presure)

And

Operation Condition = 101325 pascal, 300K temp and tick gravity(y= -9.81)
Material = air with ideal gas
Solution Initialization = all zero value



Picture uploaded:
http://img210.imageshack.us/img210/357/fin2b.jpg
http://img402.imageshack.us/img402/5941/finmeshed.jpg

But i got error ms as:
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reversed flow in 650 faces on pressure-outlet 3.

reversed flow in 1248 faces on pressure-inlet 4.

reversed flow in 5000 faces on pressure-outlet 5.
10 2.6736e-01 2.8976e-05 5.2343e-02 2.4865e-02 3.7876e-08 0:00:00 0

No error handler available

Error: FLUENT received a fatal signal (SEGMENTATION VIOLATION).
Error Object: ()

Error message from graphics function Close_Segment:
Nothing open - can't Close a 'segment'

-------------------------------------------------------------------

Anyone tell me wat to do? I set the error bc?
thanks... I 'm a beginer here, hope ur help...