Since version 2026, Flux 3D and Flux PEEC are no longer available.
Please use SimLab to create a new 3D project or to import an existing Flux 3D project.
Please use SimLab to create a new PEEC project (not possible to import an existing Flux PEEC project).
/!\ Documentation updates are in progress – some mentions of 3D may still appear.
Electric Conduction line (3D) / point (2D) region
Introduction
The line (in 3D) / point (in 2D) regions are:
-
either material regions: used to model filiform regions in the study domain
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or non-material regions: used to impose boundary conditions (BC) inside or on the frontiers of the study domain
Material regions (filiform regions)
Filiform regions enable the modeling of conducting regions of small cross-section.
The filiform regions are described in the same way as the massive regions, with in addition the cross-section of the region.
In 3D, the direction of the electric field is imposed by Flux. The electric field is usually considered tangent to the line that models the filiform region.
Non-material regions
Non-material regions enable to impose the boundary conditions (BC).
| A region… | is a BC that enables one to impose… | It is defined by… |
|---|---|---|
| Imposed normal density of current | a current density |
a current density (in A/mm) (formula with input/output parameters or formula with spatial quantities) |
| Imposed electric potential | an electric potential |
an electric potential (in V) (formula with input/output parameters or formula with spatial quantities) |
| … on the lines that form the region | ||