Magneto Static face (3D) / line (2D) region

Introduction

The face (in 3D) / line (in 2D) regions are:

either material regions: used to model thin regions in the study domain
or non-material regions: used to impose boundary conditions (BC) inside or on the frontiers of the study domain

Thin regions enable the modeling of regions of slight thickness (cracks, air-gap, current sheets, etc.).

The thin regions are described in the same way as the massive regions; with in addition the thickness of the region

The following thin region types are available for a 2D and 3D applications:

Note: * In 3D, the direction of the H and B fields for a magnetic region is selected by the user, as indicated in the table below.

Thin region	Direction of fields H and B
magnetic	soft material with: μ₂ μ₁	soft material with: μ₂ << μ₁	soft material with: μ₂ >> μ₁

Thin region

Direction of fields H and B

no restriction

quasi normal

quasi tangential

magnetic

soft material

with: μ₂ μ₁

soft material

with: μ₂ << μ₁

soft material

with: μ₂ >> μ₁

Non-material regions enable the imposing of boundary conditions (BC).

A region of…	is a BC that enables one to impose…	It is defined by…
Normal magnetic field	a normal magnetic field	(predefined)
Tangential magnetic field	a tangential magnetic field	(predefined)
… on the faces/lines that form the region