Fanny Littmarck | April 15, 2014
There are two main resources for finding COMSOL Multiphysics tutorial models: our online Model Gallery and the Model Library within the software. We also continuously push out model updates that you can download to your Model Library. Here’s your guide to what these resources are and how to use them.
Walter Frei | April 14, 2014
One of the questions we get asked all the time is: “Can I use COMSOL Multiphysics for solving my fluid-structure interactions problems?” Of course the answer is yes, so let’s talk a little about the various fluid-structure interaction (FSI) modeling techniques. Along the way, we will introduce the add-on modules you will need for these various types of analyses.
Jan-Philipp Weiss | March 6, 2014
Previously in this blog series, my colleague Pär described parallel numerical simulations with COMSOL Multiphysics on shared and distributed memory platforms. Today, we discuss the combination of these two methods: hybrid computing. I will try to shed some light onto the various aspects of hybrid computing and modeling, and show how COMSOL Multiphysics can use hybrid configurations in order to squeeze out the best performance on parallel platforms.
Pär Persson Mattsson | February 6, 2014
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.
Pär Persson Mattsson | January 23, 2014
Twenty years ago, the TOP500 list was dominated by vector processing supercomputers equipped with up to a thousand processing units. Later on, these machines were replaced by clusters for massively parallel computing, which soon dominated the list, and gave rise to distributed computing. The first clusters used dedicated single-core processors per compute node, but soon, additional processors were placed on the node requiring the sharing of memory. The capabilities of these shared-memory parallel machines heralded a sea change towards multicore […]
Lauren Sansone | January 16, 2014
Whether you are interested in an introduction to COMSOL Multiphysics or want to delve deeper into application-specific courses, you will want to check out the newly released 2014 Training Course series. This is your opportunity to advance your simulation skills and maybe show off to your colleagues how quickly you can set up and solve a complex model. At a COMSOL training course, you can learn tips and tricks from skilled application experts as well as the modeling of applications […]
Pär Persson Mattsson | March 20, 2014
One thing we haven’t talked much about so far in the Hybrid Modeling blog series is what speedup we can expect when adding more resources to our computations. Today, we consider some theoretical investigations that explain the limitations in parallel computing. We will also show you how to use the COMSOL software’s Batch Sweeps option, which is a built-in, embarrassingly parallel functionality for improving performance when you reach these limits.
Pär Persson Mattsson | February 20, 2014
In the latest post in this Hybrid Modeling blog series, we discussed the basic principles behind shared memory computing — what it is, why we use it, and how the COMSOL software uses it in its computations. Today, we are going to discuss the other building block of hybrid parallel computing: distributed memory computing.
Mark Fowler | January 24, 2014
Mixers with rotating components are essential in many industrial applications, including food production, manufacturing chemicals, pharmaceuticals, and other consumer products. While the industrial processes of mixers differ, product requirements like quality, reproducibility, and uniformity must remain constant. Using the Mixer Module is one way you can make sure these product requirements are met. In our upcoming webinar, you’ll learn how the fluid flow interfaces available in the Mixer Module allow you to streamline the design of mixers and their mechanisms.
Mark Fowler | January 21, 2014
We would like to welcome you to visit our brand new MEMS and Piezoelectric Device Showcase — a free, one-stop digital resource geared to inform you on the physics, applications, and industries as they pertain to modeling MEMS and piezoelectric devices. In the showcase, you will learn about a host of applications that can benefit from utilizing COMSOL simulation software. Rich content including videos, case studies, presentations, and example models are provided to help paint a clearer picture of everything […]
Lexi Carver | January 10, 2014
Charged particles (such as ions and electrons) are susceptible to electromagnetic fields that exist in the space they occupy. Macroscopic and microscopic particles (dust, pollutants, etc.) are primarily susceptible to forces due to the background fluid (liquid or gas) in which they reside. Particles may also interact amongst each other, or influence the surrounding fields. For systems such as particle accelerators, aerosol distributors, and filtration devices, it can be helpful to calculate particle trajectories or know where the collisions and […]