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how to input two variables (temperature, electric-field) function of materials for simulating successfully
Posted Jul 16, 2023, 5:03 a.m. EDT Electromagnetics, Materials, Studies & Solvers 1 Reply
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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)
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Hello,
It would really help if you could post your mph file, as we could then see how exactly in which way you "failed to compute". I´ll venture a guess: maybe you didn´t call the function with the proper second argument - it likely should be ec.normE assuming that your E is actually the magnitude of the electric field from a ec physics interface.
Best,
Jeff
-------------------Jeff Hiller