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-   -   3d pemfc model - fluent module & gambit - error (http://www.cfd-online.com/Forums/fluent/50675-3d-pemfc-model-fluent-module-gambit-error.html)

meisam February 25, 2009 08:07

3d pemfc model - fluent module & gambit - error
 
I try with fluent pemfc modul and use tutorial ' modeling a single channel , counter flow pem fuel cell . 2007 fluent inc ' but i dont know what the problem is cauz after first iteration the error messge 'floating point error' will appear . I think maybe boundry condition/zones that present in gambit or mesh size are wrong , but i do exactly according to the tutorial .

1- Is anode/cathod side flow channel each one apply 3 faces & and 1face that remine apply with gdl or they have another definition ?

2- Is anode/cathod side diffusion layer each one apply 3 faces or 4 faces or they have another definition ?

example for 4 faces: (2 faces ... interface collector & gdl) (1 face ... interface anode/cathod & gdl) (1 face interface catalyst & gdl)

3- do u have idea , what is my mistake ?

i am thankfull if you have mesh or case file about and send for me .


yw577 April 10, 2009 06:20

Hi, I also meet with this problem, the iteration can not continue
I want to know if you have solved this problem.
Could you share, thank you~~

karmagos January 30, 2010 03:51

what version do you use?

Einar April 12, 2010 17:37

I'm having exactly the same problem. Did you find a solution to this?
If so, please post it. Thank you.

brabah February 25, 2011 17:30

I am new in Fluent , firstly I was used the code Comsol for modeling the PEMFC but I found the difficulty because my supervisor do not help me so I decided to use the software Fluent but again I found the difficulty, I began by the tutorial of PEM fuel cells 3D but without results, please if you can help me.
Bye with my good wishes

karmagos February 26, 2011 07:55

Did you follow step by step the tutorial?
Where is your problem?

brabah April 11, 2011 12:10

[QUOTE=brabah;297059]I am new in Fluent ,
Hi of ALL ;I am found the solver for modeling pemfc 3D by FLUENT who he want to help his ,send me only the mail
bye

brabah April 11, 2011 12:12

modeling pem fuel cells 3d by fluent
 
Hi of ALL ;I am found the problem for modeling pemfc 3D by FLUENT who he want to help his ,send me only the mail
bye

brabah April 11, 2011 12:28

plot IV in PEMFC 3D
 
I am solver the pemfc 3d but i want how he plot the curve of polarisation

LWX October 28, 2011 11:05

Quote:

Originally Posted by meisam
;156867
I try with fluent pemfc modul and use tutorial ' modeling a single channel , counter flow pem fuel cell . 2007 fluent inc ' but i dont know what the problem is cauz after first iteration the error messge 'floating point error' will appear . I think maybe boundry condition/zones that present in gambit or mesh size are wrong , but i do exactly according to the tutorial .

1- Is anode/cathod side flow channel each one apply 3 faces & and 1face that remine apply with gdl or they have another definition ?

2- Is anode/cathod side diffusion layer each one apply 3 faces or 4 faces or they have another definition ?

example for 4 faces: (2 faces ... interface collector & gdl) (1 face ... interface anode/cathod & gdl) (1 face interface catalyst & gdl)

3- do u have idea , what is my mistake ?

i am thankfull if you have mesh or case file about and send for me .

I'm a new of Fluent modelling PEMFC and I found I encountered the same difficulties. I'm sure you have solved the problem and get many achievments. Can you post how you solve the problem in detail.
Thank you.


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