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Unknown variable in COMSOL AC/DC module
Posted 2 dic 2021, 07:52 GMT-5 1 Reply
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Hi everyone.
I have some problem in AC/DC module with simulation of external surface charge accumulation on dielectric shielding. After defined 4 boundaries wich are surfaces of dielectirc shielding while computing solution appears an error shown below:
Failed to evaluate variable.
- Variable: nF
- Geometry: 1
- Boundary: 4 5 6 12
Failed to evaluate expression.
- Expression: d((test(mod1.es.sigs)*(mod1.es.sigst-nF-nFe)*mod1.es.d)*(dvol),{test@3}).
I have no idea what are this nF and nFe variable. Anyone knows what this nF and nFe means? Best regards Rafał