Latest Posts
The Beauty of Vortex Streets
Vortex streets occur quite frequently in nature and are relevant in a variety of technical applications. This fluid mechanics phenomenon can also be quite beautiful to watch!
How to Model Polarization Rotation Along a Waveguide
Interested in modeling photonic waveguiding structures? Learn some efficient techniques for devices with multiple supported waveguide modes and identical waveguide cross sections.
Building a Solid Foundation for Understanding Seismic Waves
In 1906, there was the California earthquake. In 1908, there was the Lawson Report. In 1910, Harry Fielding Reid proposed the elastic rebound theory. Continue on a deep dive into seismology…
Modeling a Rapid Detection Test in COMSOL Multiphysics®
Curious about how exactly the rapid detection tests for COVID-19 work? Get a comprehensive explanation here, as well as 3 example models in COMSOL Multiphysics®. (Part 2 of 2)
An Introduction to the Physics of Rapid Detection Tests
Rapid detection tests based on lateral flow assay (LFA), also called immunochromatographic tests, can be thought of as quite advanced, yet very robust, microlaboratories. (Part 1 of 2)
Designing Cavity Filters for 5G Devices with Multiphysics Modeling
From radar and microwave ovens to particle accelerators, RF cavity filters are found in a variety of different application areas. Among them: 5G devices and infrastructure.
Analyzing Tsunami Waves with an Established Benchmark Model
The 1993 Hokkaidō earthquake in Japan caused tsunami waves that reached massive runup heights — one recorded wave in Monai Valley even reached as high as 32 m (~104 ft)!
The Science Behind Cooking Caramel
Whether you’re adding it to brownies, crème brûlée, or an ice cream sundae, cooking caramel is a precarious task: One wrong move and it could burn and taste bitter or recrystallize and harden.
Modeling the Behavior of an Oldroyd-B Polymer
Have you ever noticed that when a certain force is applied to a viscoelastic fluid, the fluid starts to look like beads on a string? Here, we showcase an example that uses an Oldroyd-B polymer.
Why Do Pigeons Have Iridescent Feathers?
If you look at a pigeon a certain way, the feathers around their necks shine in bright hues of emerald and amethyst. As it turns out, a prehistoric animal exhibited a similar trait…
6 Examples of Simulation-Driven Loudspeaker Development
From headphones for virtual reality gaming to powerful transducers for hearing aids, here are 6 examples of multiphysics simulation being used to develop new and improved loudspeaker products.
Add a Full State-Space Feedback Controller to a Control System Model
Get a brief overview of full state feedback, learn how to use the State-Space Controller add-in, and get a demonstration of implementing the add-in using a mass-spring-damper system example.
Happy Birthday, Joseph Fourier
From heat conduction and the Fourier series to the greenhouse effect and Fourier transform, Joseph Fourier’s research has many implications in the modern world.
Combining Adaptive Mesh Refinement with Data Filtering
In a follow-up to our previous blog post on data filtering, we demonstrate how to implement adaptive mesh refinement and a Helmholtz filter for a thermal model with a nonuniform heat load.
Using Data Filtering to Improve Model Performance
Want to include experimental data in your model as a load or boundary condition, but the data varies over space or time and is noisy? Try implementing data filtering, such as a Helmholtz filter.
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.
Which Radiation Interface Should I Use for My Heat Transfer Model?
Compared to the mechanisms of heat transfer by conduction and convection, heat transfer by radiation has unique characteristics. How should you account for radiation in your heat transfer models?
A Quiet Revolution: Analyzing Electric Motor Noise via Simulation
The sound we hear from electric-powered machines is a multiphysics phenomenon: A motor’s electromagnetic activity sends vibrations through both the machine and the surrounding air.
Analyzing HIFU Propagation Through a Tissue Phantom
High-intensity focused ultrasound (HIFU) is used for surgery, cancer therapy, shock wave lithotripsy, and more. Learn about how simulation can be used to analyze this noninvasive technique.
Modeling Thermomechanical Fatigue in COMSOL Multiphysics®
You can analyze thermomechanical fatigue in COMSOL Multiphysics® using experimental data from fatigue testing and material parameters from literature. A guest blogger demonstrates…
Analyzing Electric Motor and Generator Designs with COMSOL®
Using electromagnetics simulation, you can investigate and optimize the magnetic field distribution, mechanical torque, and iron usage and losses in a permanent magnet motor or generator.
Happy Birthday, Claude-Louis Navier
When you hear the name Navier, you probably think of fluid flow or the Navier–Stokes equations. But did you know that Claude-Louis Navier worked as a bridge designer and civil engineer?
Designing District Heating Networks Using Topology Optimization
District heating networks help power plants reach high efficiencies by utilizing cogeneration, which is especially helpful in the winter. How does topology optimization fit in? Keep reading…
Computing Losses in a Three-Phase Power Transformer
Around the world, power transformers are used in power grids for efficient electric power transmission. EM simulation can be used to compute losses in these devices and optimize their designs.