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Studies & Solvers Blog Posts

Automatic Time Step and Order Selection in Time-Dependent Problems

June 20, 2019

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.

Frequency Response of Mechanical Systems

June 5, 2019

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.

Introduction to Numerical Integration and Gauss Points

May 1, 2019

In this comprehensive blog post, we go over the theory behind numerical integration, Gaussian quadrature, Gauss points, weak contributions, and much more.

FEM vs. FVM

November 29, 2018

Finite element methods, finite volume methods, or a hybrid approach: Which is the best choice for CFD? It depends on the fluid flow problem you’re trying to solve.

Defining a Multiphysics Model, Part 1: The Automatic Approach

November 6, 2018

There are 3 approaches to setting up a multiphysics model in the COMSOL® software: Fully automatic, manual with predefined couplings, and manual with user-defined couplings. Here, we discuss #1.

How to Use the Cluster Sweep Node in COMSOL Multiphysics®

June 12, 2018

Keep your cluster admin happy by using the Cluster Sweep node in COMSOL Multiphysics® to optimize the parallelization of parametric computations on clusters.

How to Automate Physics Choices and Studies Using Model Methods

June 28, 2017

The ability to create and use methods in COMSOL Multiphysics® is useful for automating your modeling processes, such as choosing physics and studies.

Exploiting Maximum Principles to Save Time and Resources

May 9, 2017

By exploiting maximum principles in large and complex models, you will save time and computational resources without having to buy a bigger computer or leave your model to solve overnight.


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