General Blog Posts
A General Introduction to Chemical Kinetics, Arrhenius Law
Countless complications and pitfalls make chemical simulations challenging. Here, we give an introduction to chemical kinetics and Arrhenius law to help >>
Analyze Your Simulation Results with Projection Operators
Remember making shadow puppets on the wall with your hands? Projection operators, a method for analyzing your simulation data, work in a similar way. Let us explain…
Intro to the What, Why, and How of Shared Memory Computing
A couple of weeks ago, we published the first blog post in a Hybrid Modeling series, about hybrid parallel computing and how it helps COMSOL Multiphysics model faster. Today, we are going to briefly discuss one of the building blocks that make up the hybrid version, namely shared memory computing. Before that, we need to consider what it means that an “application is running in parallel”. You will also learn when and how to use shared memory with COMSOL.
Size Parameters for Free Tetrahedral Meshing in COMSOL Multiphysics
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
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
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
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
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?