QuickField

A new approach to field modelling

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AC Currents in the live tissue with two needle electrode

QuickField simulation example

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

Problem Type
Plane-parallel problem of AC Conduction.

Geometry
Currents in live tissue Two metal needle electrodes are inserted into the live tissue Shield U+ U- Tissue

Given
Electrical conductivity of the tissue is g = 0.35 S/m
Relative electrical permittivity of the tissue is ε = 9500
Frequency f = 60 kHz.
Potential difference ΔU = 200 V (peak).

Task
Obtain the electric field distribution around the electrodes.

Solution
In QuickField we should specify magnitude and phase of voltage sources. We apply 100V ∠0° to the left electrode and 100V ∠180° to the right electrode.

Results
Electric field strength RMS magnitude color map
Currents in live tissue