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Forum: CFX

November 16, 2018, 17:17

Replies: 5

Additional Variable with only source term

Views: 906

Posted By ghorrocks

A minor point, but I don't think this is a...

A minor point, but I don't think this is a truncation error. I think simply the bounds of that variable are set to 1e-15 and if you go below that it triggers the bounds error.

Forum: CFX

November 15, 2018, 16:30

Replies: 5

Additional Variable with only source term

Views: 906

Posted By ghorrocks

Looks like 1e-40 is too low and triggers a bounds...

Looks like 1e-40 is too low and triggers a bounds warning. Try 1e-10. And if you want to be sure do a sensitivity check to ensure that this value is low enough that it is effectively zero (that is,...

Forum: CFX

November 14, 2018, 16:17

Replies: 5

Additional Variable with only source term

Views: 906

Posted By ghorrocks

That should work. Yes, you can turn the diffusion...

That should work. Yes, you can turn the diffusion off by setting a very low diffusivity.

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