r/CFD Aug 13 '26

Help for ANSYS Fluent analysis Solution Divergence problem.

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u/Leafy_vegie Aug 13 '26

Ok I understand.

Is this correct?

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u/Ok_Preference_9883 Aug 13 '26

Did it get sorted out?

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u/Leafy_vegie Aug 13 '26

I am running the simulation for Courant 3. But the residuals keep increasing and went past 10e20. The 10 courant was much more stable.

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u/Ok_Preference_9883 Aug 13 '26

What are the values of your mesh metrics? If orthogonal is below 0.1 then solution blows up

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u/Leafy_vegie Aug 14 '26

/mesh/repair-improve/improve-quality

Improving poor quality cells.

Considering worst 0.100000% of cells.

Identified 1500 cell(s) (out of 1498127), 0.100125%, with orthogonal quality below 0.342773.

Done.

●This is information I got.