Surface Magnetic
Current Density
The
Surface Magnetic Current Density
boundary condition
specifies a surface magnetic current density at both exterior and interior boundaries, respectively. The magnetic current density is specified as a three-dimensional vector, but because it needs to flow along the boundary surface, COMSOL Multiphysics projects it onto the boundary surface and neglects its normal component. This makes it easier to specify the magnetic current density and avoids unexpected results when a magnetic current density with a component normal to the surface is given.
Surface Magnetic Current density
Enter values or expressions for the components of the
Surface magnetic current density
J
ms0
(SI unit: V/m).
Constraint Settings
To display this section, click the
Show
button (
) and select
Advanced Physics Options
. For information about the
Constraint Settings
section, see
Constraint Settings
in the
COMSOL Multiphysics Reference Manual
.
) and select Advanced Physics Options. For information about the Constraint Settings section, see Constraint Settings in the COMSOL Multiphysics Reference Manual.