specifies the tangential component of the electric field. As the equation suggests, the boundary condition only guarantees that the tangential components of E and
E0 are equal. Their normal components might deviate depending on specific situations. It should in general not be used to excite a model. Consider using the
Port,
Lumped Port, or
Scattering Boundary Condition instead. It is provided mainly for completeness and for advanced users who can recognize the special modeling situations when it is appropriate to use. The commonly used special case of zero tangential electric field is described in the
Perfect Electric Conductor section.
To display this section, click the Show More Options button (
) and select
Advanced Physics Options in the
Show More Options dialog box. For information about the
Constraint Settings section, see
Constraint Settings in the
COMSOL Multiphysics Reference Manual.
