Symmetric or Periodic BCs?

  • Last Post 11 March 2019
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SaTaYAM posted this 11 March 2019

I'm simulating heat transfer in a motor heat sink and have quartered my geometry to reduce the mesh size.

I will not be considering buoyancy forces.

Should I use periodic or symmetric BCs on the quarter faces? 

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abenhadj posted this 11 March 2019

Periodic B.C are more general and even more required if there is any considerable tangential momentum /swirl.

Best regards,


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rwoolhou posted this 11 March 2019

To add, you cannot have solid zones span/touch the periodic boundary so you may need to re-position the slices to avoid this. 

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