Low-Frequency Electromagnetics Blog Posts
How to Create Electrostatics Models with Wires, Surfaces, and Solids
Here’s a guide to building models that combine wires, surfaces, and solids using the electrostatics features based on the boundary element method that are available with the AC/DC Module.
Simulating Helmholtz Coils in COMSOL Multiphysics®
Electromagnetics simulation simplifies the process of constructing a Helmholtz coil and calculating its magnetic field to ensure the fields are uniform, which is important for a variety of uses.
How to Calculate a Capacitance Matrix in COMSOL Multiphysics®
Calculating the capacitance between two conductors is simple, but adding more conductors to the mix (as is the case with touchscreens, transmission lines, and capacitive sensors) adds complexity.
Analyzing the Structural Integrity of an Induction Motor with Simulation
The AC induction motor was invented by either Nikola Tesla or Galileo Ferraris, depending on who you ask. Either way, you can evaluate the structural integrity of this device with simulation.
Capturing Eddy Current Losses in a Permanent Magnet Motor Design
Permanent magnet (PM) motors are becoming more prevalent in transportation due to their energy efficiency. You can study Eddy current losses in a PM motor design with the AC/DC Module.
How to Optimize the Spacing of Electromagnetic Coils
Did you know that you can maximize the magnetic field strength of your electromagnetic coil designs by optimizing the spacing between the coils?
3 Ways to Optimize the Current in Electromagnetic Coils
We give you 3 ways to optimize the current in electromagnetic coil designs using the AC/DC Module and Optimization Module, add-on products to COMSOL Multiphysics®.
How to Postprocess Fields over Arbitrary Geometries
Check out this useful modeling trick: You can query the results of your model within an arbitrary geometric subregion by implementing an integration during postprocessing.