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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 find current between needle electrodes in tissue?

Engineering answer
Set up a plane-parallel QuickField AC Conduction problem for needle electrodes in biological tissue and evaluate current between electrodes from computed field results.

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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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