All posts by Walter Frei
Using Perfectly Matched Layers and Scattering Boundary Conditions for Wave Electromagnetics Problems
Learn how to use scattering boundary conditions and perfectly matched layers to truncate domains for your wave electromagnetics problem — and which technique is best for your modeling scenario.
Using General Extrusion Operators to Model Rotation
You can use the General Extrusion operators in COMSOL Multiphysics® to simulate rotating objects exposed to loads. A common real-world example of this is rotisserie-style foods.
Analyzing Capacitive Touchscreens in Consumer Electronics
Most of us use multiple touchscreen devices throughout the day, from our smartphones to the ATM. Learn how to use electromagnetics modeling to study capacitive effects in these devices.
Using Virtual Operations to Simplify Your Geometry
CAD geometry: A set of data structures that provide a very precise method for describing the shapes of parts (called boundary representation, or B-rep).
Introducing the Ray Optics Module
COMSOL Multiphysics version 5.0 introduced an add-on module for electromagnetics modeling: the Ray Optics Module. It can be used to perform ray tracing and geometrical optics studies.
Understanding Parallel Computing
Q: Do you use parallel computing to run your COMSOL Multiphysics® simulations? If so, you may enjoy this conceptual overview of computers and the algorithms used by the COMSOL® software.
Modeling a Coil Heat Exchanger
Coil heat exchangers are simple and easy to manufacture — but what about modeling them? Adding expressions to compute the temperature drop between coil turns simplifies the modeling process.
Exploiting Symmetry to Simplify Magnetic Field Modeling
Get an introduction to the types of symmetry boundary conditions that you can exploit in your EM models.