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-   -   Fluent Fuel Cell Module Tutorial - Error!!! (http://www.cfd-online.com/Forums/fluent/68258-fluent-fuel-cell-module-tutorial-error.html)

shamsnoor September 11, 2009 15:35

Fluent Fuel Cell Module Tutorial - Error!!!
 
Hello,

I am trying to simulate the 3d single-channel, counter-flow PEM fuel cell model by following the exact steps provided in the tutorial. But, for some reason the simulation stops after 1st iteration giving me "Floating Point Error".

I am unable to understand why is this happening. Can anybody please help me out.

Thanks in advance.

Shams

Einar April 12, 2010 13:42

I am having the same problem, did you get this working?

shamsnoor April 12, 2010 14:17

Quote:

Originally Posted by Einar (Post 254365)
I am having the same problem, did you get this working?

Yes, it worked for me when I set "Normal to Boundary" as the Direction Specification Method when specifying the boundary condition for "inlet_a"

Try this and let me know if it helped.

Einar April 12, 2010 16:00

I tried this, but get the same error:

Floating point error: invalid number
Reversed flow in 100 faces on pressure outlet 20

Thanks anyway.

Einar April 13, 2010 14:30

Actually this worked! Had to change it for both the inlets.
Thank you very much!

hashtag July 12, 2010 16:11

I'm still getting an error
 
I had the same error as well. I tried changing the boundary conditions as suggested...However, now it runs for the first two iterations and then the floating point error appears!
Does anyone know what's going on?! Any help or suggestions would be really really appreciated....

elemad1987 August 7, 2012 07:30

History repeat it self.
 
guess what happen History repeat it self.

I have the same problem as you

I am using the Fluent 14 and I want to simulate a PEM fuel cell.
The only tutorial of PEM fuel cell of Fluent is from 6.3 version.
I use it to Fluent 14 and I follow the steps but the results does not the same, also some data and parameters are different.

Anybody know if the tutorial of 6.3 Fluent is working to Fluent 14 too?
I think now you had finish your thesis peacefully.
Can you help me to overcome my problems.
or send me your cas files
Thank you
Emad G.
elemad1987@gmail.com


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