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-   -   User-Defined Memory Allocations for Newman P2D Battery Model (https://www.cfd-online.com/Forums/fluent/178000-user-defined-memory-allocations-newman-p2d-battery-model.html)

seham.shahid September 26, 2016 13:08

User-Defined Memory Allocations for Newman P2D Battery Model
 
Dear All,

I am trying to do the electrochemical and thermal modeling of Li-ion 18650 cylindrical cells using the Newman P2D Model available in Fluent under the dual-potential MSMD battery models. I am facing a problem when post-processing the results of the simulation.

In the fluent manual under the heading "3.2.8. Postprocessing the Dual potential MSMD battery model" there is a table titled 'User-Defined Memory Allocation' in which there are a total 13 UDMs shown that correspond to various variables. However, when I am postprocessing the results I have a total of 19 UDMs, and I can not figure out which UDM corresponds to which variable. I am specifically looking for 'cell voltage' and 'heat generation rate', so if anyone faced a similar problem or knows from where I can get the values of the cell voltage and heat generation rate then please help me out.

Your response in this regard will be highly appreciated.

Thanks.

vasava September 27, 2016 02:05

Have a look at this table.

On the other hand you can use Set_User_Memory_Name to name the UDMIs.

seham.shahid September 30, 2016 15:49

Thanks for your reply Vasava.

In the table there are only 13 UDMs reported, however, I have a total of 19 UDMs. Any idea why is this so?

vasava October 3, 2016 01:40

What version of fluent are you using? Are you using CFD-post for post-processing?

Right now, I dont have access to Fluent right now but can you check this meanwhile.

I must say, I have very small amount of experience with MSMD Battery Model.


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