The Magnetic Fields, Currents Only Interface can be set to solve for the Reduced field using the Background Magnetic Field setting. The Magnetic Fields, No Currents, Boundary Elements Interface does not have such a setting but it can be made to represent an open boundary for the reduced field by adding, in The Magnetic Fields, Currents Only Interface, an External Magnetic Flux Density feature on the boundary selection for the Magnetic Scalar-Scalar Potential Coupling.
|
When using The Magnetic Fields, No Currents, Boundary Elements Interface with iterative solvers, Right Preconditioning is preferred. Thus, it is advised to check that Right Preconditioning is used when combining the Magnetic Scalar-Scalar Potential Coupling with The Magnetic Fields, No Currents, Boundary Elements Interface and other physics interfaces. How to define Right Preconditioning is described in Iterative in the COMSOL Multiphysics Reference Manual.
|
When using the symmetry options at the physics interface level as discussed in Symmetry, there will be no degrees of freedom on the symmetry planes. For such cases, please make sure that the coupling selection does not contain boundaries that intersect with the symmetry planes.
|