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1031: Flux through interior boundaries When plotting the normal flux through the boundaries in my model, I am surprised to see that two adjacent boundary segments have opposed flux. This...
1009: How do I model materials with gain/losses? I am using a time-harmonic application mode to solve an electromagnetics problem. If I want to introduce lossy materials, or materials with gain,...
1004: Resolving the Skin Depth Why do the currents in my metal look strange? How can I get a realistic solution at high frequencies? Not resolving the skin depth is one of the...
977: How do I turn an interior boundary into a perfect conductor in my... I am using the In-Plane TM Waves application mode in the RF Module. I would like to embed a perfect electric conductor, but this boundary condition...
951: How do I calculate the capacitance matrix of a multiconductor system? I have set up a model of a number of conductors. How can I compute all the entries of the multiconductor capacitance matrix? The COMSOL...
916: Electromagnetic coils: multi-turn with fixed total current and skin... How can I model a multi-turn current-carrying circular or cylindrical coil with skin effect? How do I specify a fixed total current in each winding...
909: Can COMSOL Multiphysics be used for TEM mode analysis? Can COMSOL Multiphysics be used for TEM mode analysis? Yes, you can make a TEM, or rather quasi-TEM mode analysis of microstrip line cross sections...
902: Thin film approximation, contact resistance In modeling of transport by diffusion or conduction in thin layers, we often encounter large differences in dimensions of the different subdomains...
895: Can COMSOL Multiphysics handle left-handed materials? Can COMSOL Multiphysics handle left-handed materials? Introduction Left-handed materials/media is an important topic in optics and ...
881: Electromagnetic coils: Multi-turn without skin effect How can I model a multi-turn current-carrying coil in the DC and low frequency AC regime when the skin depth is much larger than the cross-section...
878: Should I use the RMS, the peak, or the instantaneous value to... Should I use the RMS, the peak, or the instantaneous value to specify sources for electromagnetic fields? How can I specify the phase angle? The...
852: How can I model nonlinear magnetic materials? How can I model nonlinear magnetic materials? How can I introduce an experimental B-H curve? A nonlinear magnetic material can be implemented either...
850: Is there an 'open-boundary condition' for electrostatic or... I want to simulate an electrostatic or a magnetostatic problem in free space. How should I set up my simulation domain, and what boundary condition...
808: Can I compute the magnetic forces in COMSOL Multiphysics? Can I compute the magnetic forces in COMSOL Multiphysics? Yes, there are three different methods that can be used under different circumstances:...

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Solutions - Electromagnetics