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Convergence criteria is not met while running CHT analysis in Refine mode of ANSYS Discovery 2021 R1.

- July 18, 2021 at 4:00 am
  
  Prathap
  Subscriber
  
  Hello Team,
  
  The analysis is on a PCB board which has 5 heat sources, a heat sink and a volume extract around it. Contact given is 'Permanently bonded contact' among all contact pairs as bonded contact default yields a warning which says, "Bonded contact default and Conducting non-slip wall is found on the same surface".
  
  On thermal analysis, I get a max temp as 81.71 degC when h = 8 W/m2degC. While running CHT analysis, the results go haywire which is of order of 4e35degC.
  
  Please find the model attached herewith and kindly let me know the possible workaround to solve the same.
  
  https://kaizenat-my.sharepoint.com/:u:/p/prathap/EQoi4F4FNylNvcwptPS19MUBI8Rnajwkne6Mjfl7J4-GDw?e=R1XKTx
- July 19, 2021 at 9:49 am
  
  Subashni Ravichandran
  Forum Moderator
  
  Hello Prathap Hoodi Muniraj
  
  I'm looking into this issue. Thanks for sharing your model.
  
  I will get back to you on this.
- July 24, 2021 at 1:37 pm
  
  Prathap
  Subscriber
  
  Hello Subashni
  
  I hope the problem setup was good to solve. An error free solution from your end will help to solve problems with similar setup.

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