All posts by Walter Frei
Using the Application Builder to Create a Koch Snowflake
The Koch snowflake is a well-known fractal, notable due to its simple, iterative construction process. Learn how to easily build this shape with the Application Builder in COMSOL Multiphysics®.
Designing New Structures with Shape Optimization
Get a comprehensive background on using shape optimization to design new structures, with the example of a classical beam thickness problem.
Changing the Dimensions of a Model Using Shape Optimization
If your model has a single objective function to be improved, a set of geometric parameters to be changed, and a set of constraints, you can find the optimal structure without any remeshing.
Exploiting Periodicity in Models with High Péclet Numbers
In the study of chemical species transport, a high Péclet number means the ratio of advection to diffusion is very high. Learn how to exploit periodicity when modeling this type of problem.
How to Improve Your Paddle Stroke with Simulation
To take a closer look at a paddle stroke, for activities like canoeing and dragon boat racing, we set up a 2D model in COMSOL Multiphysics® and visualize the flow pattern around the paddle blade.
Deformed Mesh Interfaces: Rotations and Linear Translations
Using the finite element method often involves modeling solid objects that are rotating and translating within other domains. See how to use the deformed mesh interfaces to model these movements.
Model Translational Motion with the Deformed Mesh Interfaces
2 interfaces for manually defining the deformation of finite element mesh: Deformed Geometry and Moving Mesh. Learn when and how to use each in this blog post…
Improving Your Meshing with Swept Meshes
Get a demonstration of using swept meshing to generate efficient and accurate finite element meshes for some common modeling cases, such as calculating the fluid flow through a network of pipes.