Low-Frequency Electromagnetics Blog Posts
Losses in Three-Phase Transmission Lines
Explore how to model the losses in three copper wires in a linear and an equilateral arrangement.
Computing Transformer Equivalent Circuit Parameters
The magnetizing and leakage inductances of a transformer can be found using an open-circuit test and a short-circuit test, respectively. Learn how to simulate these tests here.
Predicting the Effects of Induction Heating with Simulation
What is induction heating? What are the benefits of it? Can it be simulated with COMSOL Multiphysics? Keep reading to find out…
Micromagnetic Simulation with COMSOL Multiphysics®
A guest blogger from Fudan University in China used the Physics Builder in COMSOL Multiphysics to create a “Micromagnetics Module” for performing micromagnetic simulations.
Computing Loss, Temperature, and Efficiency in Electric Motors
Follow along as we investigate the variation of iron and copper losses, the resulting temperature rise, and its effect on the efficiency of a permanent magnet machine.
Voltage and Ground When Modeling Wave-Like EM Fields
We continue our discussion of voltage and ground by defining and interpreting these terms for sinusoidally time-varying electromagnetics models.
Do Voltage and Ground Exist?
Remember how the terms “voltage” and “ground” were taught in your university electrical engineering classes? Get a precise definition (in terms of modeling computational EM problems) here.
How to Model a Hall Effect Sensor with COMSOL Multiphysics®
Basic working principle of a Hall effect sensor: A nearby magnetic field deflects the path of current through a semiconductive sensor, which causes a measurable change in potential.
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