Normal Magnetic Field Condition¶

The normal magnetic field condition is a boundary condition given by:

This forces the magnetic field \(\mathbf{H}\) to be normal to the boundary \(\Gamma\) (equivalently, the tangential component of \(\mathbf{H}\) vanishes), where \(\mathbf{n}\) is the unit normal vector to the boundary.

This condition is typically used to model boundaries that are perfect magnetic conductors (PMCs) or to enforce symmetry in problems with magnetic field distributions that are symmetric with respect to a plane.