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current density

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hi
i am a new user and built a plasma model dc discharge , plasma jet with argon , i constructed it as 2D axisymmetric model. in the result when i want to plot displacement current density using 1 d plot, line or point graph by writing dc.Jdr in the y axis , comsol error " failed to evaluate variable dc.Jdr" and when i write this expression and select ground point, no plot appear

1 Reply Last Post 20 mai 2014, 10:52 UTC−4

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Posted: 1 decade ago 20 mai 2014, 10:52 UTC−4
What is on your x-axis? The displacement current in the radial direction is maybe not defined on the symmetry axis?
What is on your x-axis? The displacement current in the radial direction is maybe not defined on the symmetry axis?

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