Per page:
Search

General Blog Posts

Size Parameters for Free Tetrahedral Meshing in COMSOL Multiphysics

January 30, 2014

COMSOL Multiphysics® has 9 built-in size parameter sets when meshing. In this blog post, we’ll discuss size parameters for 1 of these sets: free tetrahedral meshing.

Overview of Integration Methods in Space and Time

January 29, 2014

Integration is an important mathematical tool for numerical simulations. For example, partial differential equations are usually derived from integral balance equations.

Using the General Extrusion Coupling Operator in COMSOL: Dynamic Probe

January 28, 2014

Consider a laser heating example with a moving heat source (laser) and moving geometry. How can you use the General Extrusion coupling operator to probe a solution at a point in the geometry?

Hybrid Parallel Computing Speeds Up Physics Simulations

January 23, 2014

Remember 20 years ago, when the TOP500 list was dominated by vector processing supercomputers equipped with up to a thousand processing units? Let’s take a walk through history to the future.

Solving Algebraic Field Equations

January 14, 2014

COMSOL Multiphysics® is commonly used to solve PDEs, ODEs, and initial value problems. However, did you know that you can also solve algebraic and even transcendental equations?

Visualization for 2D Axisymmetric Electromagnetics Models

December 31, 2013

Today we’ll look at how to make 3D plots of vector fields that are computed using the 2D axisymmetric formulation found in the Electromagnetic Waves, Frequency Domain interface within the RF and Wave Optics modules.

Using Adaptive Meshing for Local Solution Improvement

December 27, 2013

One of the perennial questions in finite element modeling is how to choose a mesh. We want a fine enough mesh to give accurate answers, but not too fine, as that would lead to an impractical solution time. As we’ve discussed previously, adaptive mesh refinement lets the software improve the mesh, and by default it will minimize the overall error in the model. However, we often are only interested in accurate results over some subset of the entire model space. […]

Learning to Solve Multiphysics Problems Effectively

December 26, 2013

One of the questions we get asked often is how to learn to solve multiphysics problems effectively. Over the last several weeks, I’ve been writing a series of blog posts addressing the core functionality of the COMSOL Multiphysics software. These posts are designed to give you an understanding of the key concepts behind developing accurate multiphysics models efficiently. Today, I’ll review the series as a whole.


EXPLORE COMSOL BLOG