Temperature divergence

  • Last Post 22 February 2019
  • Topic Is Solved
Kepojeyathas94 posted this 21 February 2019

Hi everyone. I'm facing this message: 

Divergence detected in AMG solver: temperature....
Error at host: floating point exception

And I'm having this graphic. 

I was just trying to do a solar model loading of a residential building and I've different cell zones for each material. Can you please suggest me what can be the issue? I've tried several times but I can't find the problem. I tried to improve the mesh, then I've controlled the materials properties at BC and all seems to be good.
Thanks in advance

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abenhadj posted this 21 February 2019

Disable radiation modeling and try again. You need to debug the issue by starting reducing the complexity a bit and then add the models step-wise.

Moreover add more information about models used, BC, DO Panel, Geometry and mesh quality.

Best regards, Amine

Kepojeyathas94 posted this 21 February 2019

The green one is the concrete volume, the violet is the ground and the blue one is the glass volume.

The green one in this picture is the air domain.

In the BC window there are a lot of interface zones and inlet (velocity inlet) and outlet (pressure outlet).
I'll try as you said step by step but if you have any other advices tell me.
Thank you for your time.

rwoolhou posted this 22 February 2019

The interface zones mean you have a non-conformal mesh; that's caused by not sharing topology in SpaceClaim. That's always a good idea as it'll make the setup easier. 

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