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How To Input Two Variables (Temperature, Electric-Field) Function Of Materials For Simulating Successfully

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Hello, I have a conductivity function about insulation materials given by 3D curve fitting from experiment each DC electric field and temperature.

i computed successfully using function that case has only variables of temperature.

but i think, it is not exactly result because conductivity function is consisted of temperature and electrci field.

and i tried to compute using the function that has two variables(temperature, electric field)

as a result, i failed to compute.

i think, electric field is the result of simulation, so i failed the simulation using fucntion that has two variables(temp. and electric field).

how can i solve this problem?

the conductivity(S/m) function is follows

f(T, E) = aexp(-Ea/kb/T)sinh((bT+c)E)*E

a, b, c : constant, kb : boltzman constant (eV), Ea : activation energy (eV), T : temperature (k), E : electricfield (kV/mm)



0 Replies Last Post Jul 19, 2023, 7:18 a.m. EDT
COMSOL Moderator

Hello Chanyeong Lee

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