Blog Posts Tagged Technical Content
How to Evaluate Gear Mesh Stiffness in a Multibody Dynamics Model
What is gear mesh stiffness? Why is it important to account for in a multibody dynamics model? How can it be simulated with COMSOL Multiphysics? Get answers here.
Can a Stiffness Be Negative?
Have you ever encountered an FEM formulation where the force does not monotonically increase with displacement? We discuss some examples of this behavior: negative stiffness.
How to Model Electrodynamic Magnetic Levitation Devices
Is it magic or magnets? We define electrodynamic magnetic levitation and then go over how to model this phenomenon in COMSOL Multiphysics®.
Using the Domain Decomposition Solver for Thermoviscous Acoustics
Learn how to use the Domain Decomposition solver, a memory-efficient iterative algorithm with inherent parallelism on the geometric level, in COMSOL Multiphysics®.
How to Analyze Your SOLIDWORKS® Designs with an App
Combining the power of a CAD design tool with a simulation app in the same modeling environment enables the simulation to work with both in synchronicity. Learn how to do so here.
Using the Domain Decomposition Solver in COMSOL Multiphysics®
The Domain Decomposition solver is a memory-efficient iterative algorithm that works best for large modeling problems that can’t be solved with other direct or iterative methods.
Why Doesn’t the Ice Cream in a Baked Alaska Melt?
The ice cream in a baked Alaska stays frozen, even when placed in a hot oven. How is this possible? We investigate this mysterious dessert with heat transfer simulation.
Analyze the Hodgkin-Huxley Model with a Computational App
The Hodgkin-Huxley model is an advanced model for simulating action potential. We also go over how to use a computational app to streamline this type of analysis.
How to Use Acoustic Topology Optimization in Your Simulation Studies
Today, guest blogger René Christensen of GN Hearing discusses the importance of acoustic topology optimization and how to apply it in COMSOL Multiphysics. Topology optimization is a powerful tool that enables engineers to find optimal solutions to problems related to their applications. Here, we’ll take a closer look at topology optimization as it relates to acoustics and how we optimally distribute acoustic media to obtain a desired response. Several examples will further illustrate the potential of this optimization technique.
Introduction to Efficiently Modeling Antennas in COMSOL Multiphysics®
Here’s your guide to efficiently modeling antennas using COMSOL Multiphysics® and the RF Module. An anechoic chamber, which is used to characterize antenna performance, is used as an example.
Modeling Fatigue Failure in Elastoplastic Materials
One example of fatigue failure? Bending a metal paper clip back and forth until it eventually breaks. Learn how to model this type of behavior in elastoplastic materials using COMSOL Multiphysics®.
How to Automate Winding Design in Electrical Machines with an App
Learn how to create selections in COMSOL Multiphysics® to streamline the analysis of a winding design for electrical machines, as well as how to automate the process with the Application Builder.
How to Model Short Circuits in Lithium-Ion Batteries
When the chemical energy stored in a lithium-ion battery is lost as heat, rather than being used to power a device, it is known as a short circuit. Learn how to model this phenomenon.
Understanding the Different Elements of Gear Modeling
Your introduction to the features and functionality for modeling gears in COMSOL Multiphysics®.
How to Model Large-Strain Viscoelasticity in COMSOL Multiphysics®
Learn how to model large-strain viscoelastic deformation, a common behavior exhibited by polymers and biological tissues, in COMSOL Multiphysics®.
Understand the Dynamics of the FitzHugh-Nagumo Model with an App
In 1961, R. Fitzhugh and J. Nagumo proposed a model for emulating the current signal observed in a living organism’s excitable cells. This became known as the FitzHugh–Nagumo model.
Integrals with Moving Limits and Solving Integro-Differential Equations
Learn how to analyze spatial integrals over variable limits, whether they are prescribed explicitly or defined implicitly. (Part 2 of 2)
Guidelines for Equation-Based Modeling in Axisymmetric Components
Here’s your comprehensive guide to equation-based modeling for problems with cylindrical coordinates and axisymmetric components.
Efficiently Calculating the Acoustic Transfer Impedance of a Perforate
Learn how to efficiently calculate the acoustic transfer impedance of a perforate in COMSOL Multiphysics®. (Hint: It involves applying a semitransparent boundary to the model.)
Improved Capabilities for Meshing with Tetrahedral Elements
In this blog post, we guide you through the process of generating a tetrahedral mesh for your COMSOL Multiphysics® models.
Sampling from Phase Space Distributions in 3D Charged Particle Beams
Learn how to sample the initial positions and velocities of 3D beam particles from the transverse phase space distribution. Part 3 of a series on modeling charged particle beams.
Understanding the Paraxial Gaussian Beam Formula
The paraxial Gaussian beam formula can be used to describe the Gaussian beam. We go over the theory behind this mathematical formula, as well as its limitations.
Efficiently Assign Materials in Your COMSOL Multiphysics® Model
Here, we go over 3 methods for efficiently assigning materials in your COMSOL Multiphysics® models. The included tutorial videos show step-by-step instructions for each related feature.
Phase Space Distributions and Emittance in 2D Charged Particle Beams
We discuss the concepts of phase space and emittance as they apply to the release of ions or electrons in beams. Part 2 of a series on phase space distributions in beam physics.