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DC Currents in the live tissue with two needle electrodes - QuickField simulation example

This is an example simulation, used by Professor Bertill Persson in preparation of his publication QuickField modelling of electro-pulse-therapy.

Engineering question

How to calculate the current density and electric field distribution around the needle electrode?

Answer
Use Plane-parallel problem of DC Conduction to determine the current density and electric field distribution around electrodes.

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Typical applications
medical needle electrodes, electroporation probes, biomedical electrode systems

AC Currents in the live tissue with one needle electrode

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Simulation problem

Problem Type
Plane-parallel problem of DC Conduction.

Geometry
DC Currents in the live tissue with two needle electrodes Two metal needle electrodes inserted into the live tissue Shield + - Tissue

Given
Electrical conductivity of the tissue is g = 0.35 S/m
Potential difference ΔU = 1 kV.

Task
Obtain the current density and electric field distribution around electrodes.

Results
Current density color map and vectors of the electric field.
DC Currents in the live tissue with two needle electrodes

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