Floating point exception error in Fluent

- June 28, 2022 at 1:40 pm
  
  rl517
  Subscriber
  
  I am currently trying to get a small cylindrical cell battery pack working using the MSMD battery model, for which I have followed the procedures from the fluent manual and a youtube tutorial in terms of the named components (tabs, bus bars etc.). Here is the mesh (roughly 400k elements):
  
  The average skewness is 0.22, and the average orthogonality is 0.77, which I understand are acceptable values.
  In fluent after setting up the MSMD model and successfully initialising, I get the following floating point exception error when running the calculation, which after doing some research this seems like it could be the result of almost anything.
  Error at Node 0: floating point exception
  Stabilizing uds-0 to enhance linear solver robustness.
  Stabilizing uds-0 using GMRES to enhance linear solver robustness.
  
  Divergence detected in AMG solver: uds-0 Stabilizing uds-1 to enhance linear solver robustness.
  
  Error at host: floating point exception
  
  ===============Message from the Cortex Process================================
  
  Compute processes interrupted. Processing can be resumed.
  
  ==============================================================================
  
  Error: floating point exception
  Error Object: #f
  
  Grateful for any assistance as to how to fix this, please let me know if more info is required.
- June 29, 2022 at 7:19 pm
  
  RK
  Ansys Employee
  
  Hello,
  Yes, looks like an initialization parameter was not defined right. Could also be an issue with the setup. Can you please follow the MSMD tutorial (Chapter 27: Simulating a Single Battery Cell Using the MSMD Battery Model (ansys.com)) and set it up based on this tutorial?
- June 30, 2022 at 9:29 am
  
  ali.abbas
  Subscriber
  
  check if double precision is enabled
  - June 30, 2022 at 6:30 pm
    
    rl517
    Subscriber
    
    This appears to have fixed it, the calculation runs now. Thank you so much!
  - June 30, 2022 at 6:54 pm
    
    rl517
    Subscriber
    
    Although now this model for some reason is giving me temperatures of 5000K, no idea why they are so high
- July 1, 2022 at 7:25 am
  
  ali.abbas
  Subscriber
  
  Give me your mail so i can contact you
  - July 1, 2022 at 11:08 am
    
    rl517
    Subscriber
    
    cjlral@gmail.com
- July 7, 2022 at 11:46 am
  
  am21s079
  Subscriber
  
  Is the temperature problem resolved? Please share the solution. I'm also facing the same issue.
- November 9, 2022 at 10:31 am
  
  Arman Burkitbayev
  Subscriber
  
  Did you have a problem when you parametrized the battery with HPPC data?

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