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Blog Posts Tagged Technical Content

Strategies to Counter Small Automatic Time Steps

March 16, 2020

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.

Thermal Equilibrium and Nonequilibrium Heat Transfer in Porous Media

March 3, 2020

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.

Modeling Darcian and Non-Darcian Flow in Porous Media

February 24, 2020

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

February 20, 2020

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

February 19, 2020

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

February 18, 2020

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

February 13, 2020

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.

How to Perform a Sensitivity Analysis in COMSOL Multiphysics®

February 6, 2020

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.


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