Challenges in Electrode Placement in Ansys Maxwell (Eddy Current Mode)

[reepa]

I am designing a brain tissue model in Ansys Maxwell (Eddy Current mode) to simulate electrical current flow through the head. One of the key challenges is correctly placing the electrodes on the outer skin surface.

The model consists of four layers:

• Skin (Conductivity: 0.43 S/m)
• Skull (Conductivity: 0.01 S/m)
• CSF (Conductivity: 1.79 S/m)
• Brain Matter (Conductivity: 0.33 S/m)

  To apply stimulation, I have positioned two electrodes on the outer skin layer. A 2mA current excitation is assigned:

  • One electrode injects 2mA into the tissue, directing the current toward the brain.
  • The other electrode is assigned 2mA, directing current outward from the brain.

    After successful validation of the setup, the simulation results indicate an invalid conduction path. I would greatly appreciate any insights or recommendations on resolving this issue.

    

[Timos]

Hi, you are getting the error because of the non-conductive path. In maxwell the input current should be equal with the output current. In case there is a dielectric in between, you end up with conduction path error. Kindly check your Model Settings> Material Thresholds to change the insulator thresholds.

[vb17062004]

Hey , I am recently start working on Ansys Maxwell but i don't know how to use proper i know only some initial and easy task but i want to learn properly. So please give me any suggestion where i can learn properly about Ansys Maxwell and if possible, then give me your any contact so i can directly contact you if i want any requirement about Ansys Maxwell. Please give me your response here or mail me on vb17062004@gmail.com. I am asking you because i really impressed when i saw your project because i think in ansys we will work only on electronics device but you are working on brain that's why i was asking you for help.