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Unable to read variable. (Global Definition)
Posted Dec 26, 2023, 4:34 p.m. EST General 0 Replies
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Hi, I am a COMSOL begginer. I am trying to learn the overal framework, using some example workflows avaialble in the manual. Specifically, I was playing with "drift-diffusion-tutorial" available in PlasmaApplicationLibrary Manual.
In that, the tutorial says that I need to declare global variables using the table.
For example there exists a consant 
that defines a reaction rate as
1.993039e-014dd.Te^0.93exp(-0.41/dd.Te)
At a glance, it seems that dd.Te and dd.Te are some internal variables within "Drift-Diffusion Interface"
However, as I run it (compute it) , I am encountering with the following error message.
- Feature: Time-Dependent Solver 1 (sol1/t1)
Undefined variable.
- Variable: dd.Te
- Geometry: geom1
- Domain: 1 Failed to evaluate Jacobian of expression.
- Expression: dvol_spatial(comp1.dd.Sen(1/e_const)) Failed to evaluate Jacobian of expression.
- Expression: (comp1.dd.Sentest(comp1.En)/e_const)(dvol_spatial)
What are issues with this?
I appreacite your help in advance,
Regards, Jaekwang
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Hello Jaekwang Kim
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