All posts by Walter Frei
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.
How to Compute Distances Between Objects in COMSOL Multiphysics®
Compute the distance between two deforming objects in the COMSOL Multiphysics® software. Here’s how…
How to Model the Electromagnetic Heating of Underground Cables
Underground power cables are beneficial in many ways, but they are also subject to overheating. To design better cables, we can model their electromagnetic heating in COMSOL Multiphysics.
Part 2: Modeling the Harmonic Excitations of Nonlinear Systems
Learn how to model the harmonic excitations of a linear system in COMSOL Multiphysics® in this comprehensive tutorial post. Part 2 of 2.
Part 1: Modeling the Harmonic Excitations of Linear Systems
Learn how to model the harmonic excitations of a nonlinear system in COMSOL Multiphysics® in this comprehensive tutorial post. Part 1 of 2.
How to Implement a Delay in Your Thermostat Simulation
When simulating a thermostat in COMSOL Multiphysics®, you can implement a delay for short-cycling in addition to the on and off setpoints. See how here.
Thermal Modeling of the Air Flow Inside and Around Your House
Learn step by step how to set up a thermal model of the airflow in and around a house, including how to implement tabulated meteorological data from the historical ASHRAE database.
Exporting Meshes and Solutions Using the Application Builder
You can easily export mesh and analysis data from COMSOL Multiphysics® into a text file. How? Using the Application Builder. We show you how here.
Modeling Thermal Ablation for Material Removal
When certain materials are heated to a certain point, they go directly from the solid to the gas phase in a process called ablation. Learn how to model the thermal ablation process here.
Thermal Modeling of Phase-Change Materials with Hysteresis
Hysteresis occurs when the melting temperature of a material is different from the solidification temperature. We demonstrate the thermal modeling of such a material here.