## Validating the Use of Boundary Elements for Magnetostatics Modeling

##### Brianne Christopher October 30, 2018

To validate the boundary element method (BEM) as a viable alternative to FEM for magnetostatics modeling, you can try a 3-part tutorial series of electromagnetic force calculations.

### Evaluating Transformer Designs with Electromagnetics Simulation

##### Bridget Paulus October 25, 2018

Transformers are used to increase, decrease, and isolate voltage in many different types of devices. EM simulation can be used to evaluate a transformer design, no matter its purpose.

### How to Perform a Nonlinear Distortion Analysis of a Loudspeaker Driver

##### Kirill Shaposhnikov June 18, 2018

For a thorough and complete analysis of a loudspeaker driver design, acoustics engineers need to perform nonlinear time-domain studies in addition to frequency-domain studies.

### How to Model Conductors in Time-Varying Magnetic Fields

##### Walter Frei May 25, 2018

You can use the AC/DC Module to perform frequency-domain simulations for conductors in time-varying magnetic fields by describing the skin effect.

### Analyzing Magnetotellurics with Electromagnetics Simulation

##### Caty Fairclough May 17, 2018

Magnetotellurics (MT) is a geophysical method for mapping the magma flow of volcanos. Using electromagnetics simulation, engineers are able to study and improve this technique.

### Common Pitfalls in Electrothermal Analysis

##### Walter Frei April 17, 2018

In the real world, electromagnetic heating often involves a nonlinear temperature. Learn some common pitfalls that occur during this type of electrothermal analysis and how to overcome them.

### Redesigning Faraday’s Wheel: Creating Efficient Homopolar Generators

##### Bridget Paulus April 9, 2018

Acyclic generator, unipolar generator, disc dynamo, Faraday wheel, homopolar generator: Whatever you call it, this device has an interesting history and a variety of applications.

### Topology Optimization of a Magnetic Circuit for Loudspeakers

##### Thomas Forrister March 22, 2018

By optimizing the topology of loudspeaker components, such as magnetic circuits, we can develop speaker designs that are portable, lightweight, and high quality.

### Modeling Ferromagnetic Materials in COMSOL Multiphysics®

##### Cesare Tozzo January 23, 2018

Get a comprehensive guide to modeling ferromagnetic materials in COMSOL Multiphysics®, including an introduction to the theory and a series of useful animations.

### Modeling Cables in COMSOL Multiphysics®: 6-Part Tutorial Series

##### Brianne Christopher December 29, 2017

Your roadmap to modeling cables with the AC/DC Module and COMSOL Multiphysics®: A 6-part tutorial series that starts with the basics and gradually adds complexity and multiple physics.

### Analyzing an Electrodynamic Ion Funnel with COMSOL Multiphysics®

##### Caty Fairclough December 8, 2017

Quadrupole mass filters and ion mobility spectrometers are used to detect explosives, study complex biological molecules, and more. Ion funnels are an important component of these devices.