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-   -   Warning: Surface chemistry solver did not converge (http://www.cfd-online.com/Forums/fluent/113840-warning-surface-chemistry-solver-did-not-converge.html)

Parisa_Khiabani February 27, 2013 14:15

Warning: Surface chemistry solver did not converge
 
Hello guys,
I am simulating a surface reaction in FLUENT, finite-rate.
When the iteration stats, the following error shows up:

Warning: Surface chemistry solver did not converge for 203 cells/faces


I reduced the density under-relaxation. Also, I simulated the flow alone to stabilize the flow and after that started to solve surface chemistry, but the above error happened again.
Can anyone kindly help me to resolve this issue?
Thanks,

silverra1n March 12, 2014 12:58

I have same problem. Is there any answer?

villager April 1, 2014 15:32

I think, very stiff surface reaction mechanism.
There is always this problem with Mr. Deutschmann's mechanisms for me...


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