Learning Forum

[lee.seungwoo]

Hello, I am using Ansys software to study microcoils. I am analyzing the effects of magnetic and electric fields generated when current flows through an insulated coil using the Eddy Current mode, and I have some questions about its analysis method.  

 

1. From what I understand, the current used in this mode is typically sinusoidal. Thus, when a sinusoidal current flows, the generated magnetic field changes over time, inducing an electric field in the opposite direction according to Maxwell's equations. Consequently, when a sinusoidal current flows, an induced electric field with a phase of -cosine should be generated. However, in the Eddy Current mode, it seems that the phase of the induced electric field aligns with the phase of the current, both having a sinusoidal phase. I am curious why this result occurs. (I used 1kHz)

 

2. I have also observed that this phenomenon varies depending on the analysis frequency. Why does the result change with frequency, and how can we predict these changes?  

 

3. Additionally, I would like to understand how enabling or disabling the Eddy Effect within the Eddy Current mode affects the analysis.  

 

I look forward to your smart and insightful answers to help resolve these issues.  

 

Thank you.