Latest Posts
Automatic Time Step and Order Selection in Time-Dependent Problems
Here’s an intro to the time-dependent solver log in COMSOL Multiphysics® and an in-depth look at the theory behind discrete time-stepping schemes and optimal time steps and discretization orders.
Building a Magnetohydrodynamic Multiphysics Model in COMSOL®
Magnetohydrodynamic models call for fluid dynamics and electromagnetics couplings. To do so, you can set up bidirectional couplings between all physics equations or building a simplified model.
Using Simulation Software in the Courtroom
Simulation is inherently a representation of reality. In court, lawyers establish what did or did not happen in reality and why. So what happens when simulation software is used in a legal case?
COMSOL Multiphysics® Version 5.4 Named 2018 Product of the Year
We’re raising a glass in celebration: Tech Briefs magazine presented COMSOL with a 2018 Readers’ Choice Product of the Year award for COMSOL Multiphysics® version 5.4 and COMSOL Compiler™.
Happy Birthday, James Clerk Maxwell
Maxwell’s equations, which describe how electric and magnetic fields behave and interact, revolutionized electromagnetics. Did you know that James Clerk Maxwell also took the first color photo?
Introduction to Modeling Acoustic-Structure Interactions in COMSOL®
To model an ASI problem, you need to account for the behavior of elastic waves in solids, pressure waves in fluids, and their interaction. The COMSOL® software includes interfaces for doing so.
Optimizing PID Controller Performance with COMSOL Multiphysics®
PID controllers involve three components that must work together simultaneously, and it can be challenging to get each of them just right. That’s where process control simulation comes in.
Frequency Response of Mechanical Systems
Read this blog post for a detailed look at damped mechanical systems, a guide to setting up frequency-response analyses in COMSOL®, and a discussion of how to interpret your results.
Efficient Parameter Control and Usage in COMSOL Multiphysics®
Any model can benefit from a proper parameter list. Learn how to control and use model parameters more efficiently with features such as parameter nodes and forms.
Keynote Video: Improving Process Understanding with Applications
When an organization’s research spans across many industries, consistent product quality becomes the name of the game. That’s why Huntsman Advanced Materials turned to simulation applications.
How to Use Lumped Elements to Model a Mechanical System
Modeling a large, complex system? You may want to simplify configurations in the model setup to better understand it, but how? Enter the Lumped Mechanical System interface in COMSOL Multiphysics.
Analyzing Slope Stability Through the Shear Strength Reduction Method
Dams that are poorly designed or constructed are likely to fail. However, geotechnical engineers can account for the stability and reliability of a dam long before the structure is even built.
How Does Sand Move on Mars? A Planetary Geology Question
There are a lot of sand dunes on the red planet. Studying how sand and sediment moves on Mars may help scientists better plan exploratory missions.
Analyzing Topology Optimization of a Photoacoustic Spectroscopy Cell
Signals generated via photoacoustic spectroscopy are often weak and difficult to detect. Acoustic cells can be used to amplify the signal, but they need to be designed with sensitivity in mind.
Happy Birthday, Esther M. Conwell
Esther M. Conwell’s list of accolades is almost as long as her list of accomplishments in semiconductor research. Just as impressive, this physicist inspired a new generation of STEM learners.
4 Methods to Account for Radiation in Participating Media
The discrete ordinates method, P1 approximation, Rosseland approximation, or the Beer–Lambert law: Which should you use to analyze heat transfer in participating media?
Understanding the Drug Reaction Kinetics of Nerve Guides via Modeling
Ever had a pinched nerve? Nerve guides repair this type of damaged nerve cell tissue. To design safe and reliable nerve guides, we can use simulation to understand their drug reaction kinetics.
Electrode Balancing of a Lithium-Ion Battery with COMSOL®
Electrode balancing is an important consideration for battery cell engineers. Get an overview and mathematical framework of this phenomenon and learn how to analyze it in a lithium-ion battery.
Evaluating the Impact of Bearing Misalignment on Rotor Vibration
Bearings are found in devices ranging from MEMS and turbines to electric motors and even ships. How we account for a bearing’s misalignment (and the resulting rotor vibration) depends on its use.
How to Use Circular Ports in the RF Module
Degeneracy in circular ports leads to uncertainty in the mode field orientation. Not so with the Circular Port Reference Axis feature, which lets you define field orientations on port boundaries.
Speeding Up DNA Separation in a Microchannel via Simulation
DNA separation takes a long time using traditional methods. Now, researchers from the Missouri University of Science and Technology have found a faster way to get the job done.
Heat Transfer with Radiation in Participating Media and the Discrete Ordinates Method
Here’s your complete guide to the discrete ordinates method, quadrature sets, and how to model the interaction between radiation and a participating or absorbing medium.
Happy Birthday, Elsie Eaves
Elsie Eaves was one of the first female civil engineers and is celebrated as a role model for future engineers.
Is Meshing Run in Parallel in COMSOL Multiphysics®?
Meshing, an integral part of modeling in COMSOL Multiphysics®, can take up a lot of time and resources. Parallelized meshing speeds things up by distributing the meshing of domains on more cores.