Latest Posts
Strategies to Counter Small Automatic Time Steps
When solving a model, you may encounter a varying time step and discretization order, or NLfail or Tfail could be greater than 0. Use these strategies to improve the efficiency of the simulation.
Now Available: Collection of COMSOL Verification and Validation Models
You can conveniently find a selection of COMSOL models that include external verification references in a single place: the COMSOL Verification and Validation Models page.
Material Characterization by Means of Simulation
Carbon-based materials, such as synthetic specialty graphites, are found in many industries, including solar, semiconductor, car manufacturing, ceramics, and metallurgy.
Simulating the Carburization and Quenching of a Steel Gear
Gears are typically carburized and quenched to improve their fatigue durability and wear resistance. Simulation can help determine how these processes affect the gear’s residual stress state.
Happy Birthday, Olga Ladyzhenskaya
Olga Ladyzhenskaya wasn’t one to shy away from a challenge. In fact, through her research, she proved the convergence of a finite difference method for the Navier–Stokes equations.
Thermal Equilibrium and Nonequilibrium Heat Transfer in Porous Media
Heat transfer in porous media can occur under thermal equilibrium, such as a rock consisting of different minerals or trapped fluids, or nonequilibrium, like a thermal energy storage (TES) unit.
Using the Material Libraries in COMSOL Multiphysics®
The built-in material libraries are databases with materials and their associated properties, while the add-on Material Library contains material properties for more than 3800 materials.
Verifying a HAMSTAD Benchmark for an Insulated Roof Model
Heat and moisture (HAM) transport is an important area of study for building materials and structures, as it can affect the rate and coverage area of mold growth.
Modeling Darcian and Non-Darcian Flow in Porous Media
Get an introduction to the theory behind modeling flow in porous media, including the Kozeny–Carman, Forchheimer, Ergun, Burke–Plummer, and Navier–Stokes equations.
How to Predict the Fatigue Life of Welds
After an introduction to the welding process and weld geometries, we compare the nominal stress method, notch stress method, and hot spot stress methods for predicting the fatigue life of welds.
How to Perform Lens Simulations Using the Wave Optics Module
Lens simulations in wave optics can be difficult to perform, as they usually require a lot of mesh elements. Learn how to sidestep this issue using the functionality of the Wave Optics Module.
Making Structures Stronger by Removing Material
To make a structure stronger, sometimes you have to take material away instead of adding more. We go over concepts like fillets, load paths, and displacement control to demonstrate this concept.
Building Roller Chain Geometries in the Multibody Dynamics Module
You can easily set up a geometry model of a roller chain, sprocket, or roller chain sprocket assembly using the built-in parametric geometry parts in the COMSOL Multiphysics Part Library.
Optimizing Composite Wheel Rim Designs with COMSOL Multiphysics®
Composite wheel rims are stronger and lighter than their conventional steel and aluminum counterparts. Plus, they offer better acceleration, braking, and cornering on the road.
Happy Birthday, Edith Clarke
Once hired as a “human computer”, electrical engineer Edith Clarke is known for inventing the Clarke Calculator, which solves capacity and inductance calculations for long transmission lines.
How to Perform a Sensitivity Analysis in COMSOL Multiphysics®
How do the parameters of your design affect its performance? Understanding this relationship is a valuable part of the design process. By performing a sensitivity analysis, you can do just that.
Analyzing the Impact of a Melting Frozen Inclusion
One example of the effects of climate change is the melting of permafrost in northern boreal regions. In this blog post, we show an example of a melting frozen inclusion in a porous medium.
Predictive Analytics Capabilities of SmartUQ® for COMSOL®
How does COMSOL Multiphysics® fit into the predictive analytics and uncertainty quantification (UQ) workflow of SmartUQ®? Guest blogger Gavin Jones demonstrates with a microwave ablation example.
Using Transfer-Matrix Computation to Analyze Wax Guard Acoustics
The wax guard is an important part of a hearing aid, as it can improve the functionality and overall lifespan. We feature an acoustics model of a wax guard based on an actual industry example.
Happy Birthday, Joseph-Louis Lagrange
Calculus of variations, Lagrange multipliers, deforming geometries, and Lagrange polynomials — These are just a few of Joseph-Louis Lagrange’s many contributions to the world of mathematics.
How to Use Topology Optimization Results as Model Geometries
Oftentimes, topology optimization is not the last step in your design process. In fact, you can use the results from a topology optimization study as model geometries for your next analysis.
How to Use an Add-In to Convert Images to Geometry Models
Did you know that you can draw an image, import it into COMSOL Multiphysics®, and the Image to Curve add-in will create an interpolation curve from a contour plot of the image?
Developing a Silicon MEMS Chip for On-Demand DNA Synthesis
The development of genome editing tools like CRISPR-Cas9 has increased the demand for DNA synthesis technology. Researchers are creating a DNA synthesis platform to broaden horizons in the field.
Happy Birthday, Sofia Kovalevskaya
Aside from her contributions to analysis, differential equations, and mechanics, Russian mathematician Sofia Kovalevskaya was also an accomplished playwright and novelist.