Hi everyone, I am trying to simulate the mole fraction of the species nearby the anode of a fuel cell. The boundary conditions include the anode as porous media and fuel gas inlet flow. The species will react on the anode. Can I build up such a model using the models provided in Fluent? Should I use UDF? Thank you all!

I also am working on fuel cells. Depending on exactly what you want to solve depends on what tools you need to use. I found that I had to creat 3 UDFS.

Best piece of advice I can give you is to know what equtions you are trying to solve befor you begin to build a model. If those equations are avaliabe in fluent you may not need to use a UDF.

The equations I have built a UDF for are the Butler Volmer equation and the current production.

If you would like more information I may be able to help.

Hello Andrew,

I work on modeling fuel cells as well. Could you give more details? e.g.Your model is two-phase or single phase? if two-phase flow, which model do you use? multiphase model or multispecies model or DPM? or something else? how do you model phase changes? Could you send me some UDFs for fuel cells?

Thank you so much!

rookie

Guys,

I work in fuel cell modeling as well. I think we should form a usergroup or something about modeling of fuel cells to share information. I have been in this forum for quite some time and have considerable experience in CFD software. If interested in starting a separate user-group, I think we can all team together.

Please let me know.

Murali

I think it will be great if we can exchange ideas on this!

Hello Murali,

So far, found only a couple of guys working on Fuel cell in this forum. I think the simpliest method is to use email. In the mean time, I am going to develop an online fuel cell forum group, and posted on my website. But it may take a while for me to finish it.

Thank you!

Rookie

rookie,

I have seen quite a few guys appearing in the forum with fuel cell interests. A user forum would be great too. I thought we could start something immediately so that we may not lose the people who are currently visiting. Once u start your forum, this yahoo group can be merged with yours. Does that sound ok to you ?

Murali

http://groups.yahoo.com/group/fuel_cells/