CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > FLUENT

3d pemfc model - fluent module & gambit - error

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Display Modes
Old   February 25, 2009, 08:07
Default 3d pemfc model - fluent module & gambit - error
  #1
meisam
Guest
 
Posts: n/a
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 .

  Reply With Quote

Old   April 10, 2009, 06:20
Default
  #2
New Member
 
yuanwei
Join Date: Apr 2009
Posts: 1
Rep Power: 0
yw577 is on a distinguished road
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~~
yw577 is offline   Reply With Quote

Old   January 30, 2010, 03:51
Default
  #3
New Member
 
Philip Mprezas ( f.mprezas@yahoo.gr )
Join Date: Jan 2010
Location: Athens, Greece
Posts: 13
Rep Power: 7
karmagos is on a distinguished road
what version do you use?
karmagos is offline   Reply With Quote

Old   April 12, 2010, 17:37
Default
  #4
New Member
 
Einar
Join Date: Apr 2010
Posts: 4
Rep Power: 7
Einar is on a distinguished road
I'm having exactly the same problem. Did you find a solution to this?
If so, please post it. Thank you.
Einar is offline   Reply With Quote

Old   February 25, 2011, 17:30
Default
  #5
New Member
 
brabah2010@hotmail.fr
Join Date: Feb 2011
Posts: 7
Rep Power: 6
brabah is on a distinguished road
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
brabah is offline   Reply With Quote

Old   February 26, 2011, 07:55
Default
  #6
New Member
 
Philip Mprezas ( f.mprezas@yahoo.gr )
Join Date: Jan 2010
Location: Athens, Greece
Posts: 13
Rep Power: 7
karmagos is on a distinguished road
Did you follow step by step the tutorial?
Where is your problem?
karmagos is offline   Reply With Quote

Old   April 11, 2011, 12:10
Default
  #7
New Member
 
brabah2010@hotmail.fr
Join Date: Feb 2011
Posts: 7
Rep Power: 6
brabah is on a distinguished road
[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 is offline   Reply With Quote

Old   April 11, 2011, 12:12
Default modeling pem fuel cells 3d by fluent
  #8
New Member
 
brabah2010@hotmail.fr
Join Date: Feb 2011
Posts: 7
Rep Power: 6
brabah is on a distinguished road
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 is offline   Reply With Quote

Old   April 11, 2011, 12:28
Default plot IV in PEMFC 3D
  #9
New Member
 
brabah2010@hotmail.fr
Join Date: Feb 2011
Posts: 7
Rep Power: 6
brabah is on a distinguished road
I am solver the pemfc 3d but i want how he plot the curve of polarisation
brabah is offline   Reply With Quote

Old   October 28, 2011, 11:05
Default
  #10
LWX
New Member
 
LiuWenxiu
Join Date: Oct 2011
Posts: 3
Rep Power: 5
LWX is on a distinguished road
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.
LWX is offline   Reply With Quote

Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Pemfc-addon-error message vasanth parthasarathy Main CFD Forum 2 November 25, 2013 16:55
mesh of fuel cell pemfc in GAMBIT nadia FLUENT 3 August 7, 2012 07:44
Fluent PBM add-on module rr123 FLUENT 0 March 2, 2009 04:47
PEMFC addon module vasanth parthasarathy FLUENT 0 February 28, 2008 03:08
fluent nox module for nox reduction using sncr asim ibrahim Main CFD Forum 3 October 11, 2006 02:07


All times are GMT -4. The time now is 01:55.