CFD Online Discussion Forums

CFD Online Discussion Forums (http://www.cfd-online.com/Forums/)
-   ANSYS (http://www.cfd-online.com/Forums/ansys/)
-   -   Weird problem in FLUENT Species Transport (http://www.cfd-online.com/Forums/ansys/123944-weird-problem-fluent-species-transport.html)

Bin September 24, 2013 20:41

Weird problem in FLUENT Species Transport
 
1 Attachment(s)
Hi all,

As mentioned in the title, I encountered a 'weird' problem when simulating multiphase+species transport. Originally, I tried simulating tank filled by fluid by turning on multiphase model and all things look well. Then I turned on species transport model to change the input fluid into certain mixture of fluid, other settings remain the same. I ran the simulation, but the result's contour shows the mixture is flowing upward(!). The gravity is -9.81m/s2 which I think is correct (and previous multiphase simulation is correct with -9.81m/s2). I had attached the image here, anyone know what happened?

Attachment 25610

Regards,

Bin


All times are GMT -4. The time now is 18:24.