Undefined value found.
- Detail: Undefined value found in the equation residual vector.
- There are 66 degrees of freedom giving NaN/Inf in the vector for the variable comp1.phil. at coordinates: (0.00825542,0.00128606,0.005028), (0.008,0.001,0.005028), (0.008,0.0014,0.005028), (0.00825542,0.00128606,0.00503061), (0.008,0.001,0.00503061), ...
There are 66 degrees of freedom giving NaN/Inf in the vector for the variable comp1.phis. at coordinates: (0.00825542,0.00128606,0.005028), (0.008,0.001,0.005028), (0.008,0.0014,0.005028), (0.00825542,0.00128606,0.00503061), (0.008,0.001,0.00503061), ...
I solve a multiphysics coupled SOFC with mass, heat, momentum transfer, and electrochemical reaction.
It solved smoothly with electrochemical and momentum transport and also solved with anode mass transport.However, when I coupled mass transfer of cathode it reports an error like above.
When I decoupled reaction in cathode mass transport, it solved. When I reduce the reaction multiply by 0.1 it also solved. Increase reaction will cause the same error.
Besides, the coordinates don't in the solution domain. I wonder if anyone could help me to figure out what should I do without compromise in reduced reaction in mass transport?
Also, When I use reduced reaction coupled with heat transfer, the same error appeared.
The cathode anode and electrolyte are just 20, 30, and 8 um thick.
With great appreciation.
Kind regards,
Xiaoqiang