How to Identify and Resolve Singularities in the Model when Meshing

Walter Frei | October 29, 2013

In our previous post on Meshing Considerations for Linear Static Problems, we found that, in the limit of mesh refinement, the solution to the finite element model would converge toward the true solution. We also saw that adaptive mesh refinement could be used to generate a mesh that would have smaller elements in regions where the error was higher, rather than simply using smaller elements everywhere in the model. In this post, we will examine a couple of common pitfalls […]

Fabrice Schlegel | October 28, 2013

Microfluidic devices are so small that the micropumps and micromixers that control and mix the fluid inside the device cannot involve any moving components. Instead, they must take advantage of electroosmotic flow. Here, I will describe the concept of electroosmosis and the electrical double layer (EDL), and how to model these in COMSOL, walking you through two example models.


Bernt Nilsson | October 24, 2013

Households and industries alike depend on reliable electrical power. To serve the diverse power needs of end users and consumers, the electrical grid is undergoing a major overhaul to upgrade a technology that is over 100 years old. The new infrastructure — the smart grid — is being developed for reliable, economic, and environmentally friendly electrical systems. A great example of equipment for the smart grid comes from ABB. Along with many other products, ABB has introduced the world’s fastest […]

Walter Frei | October 22, 2013

In this blog entry, we introduce meshing considerations for linear static finite element problems. This is the first in a series of postings on meshing techniques that is meant to provide guidance on how to approach the meshing of your finite element model with confidence.

Lauren Sansone | October 18, 2013

Thank you to everyone who came out to the COMSOL Conference 2013 Boston for making this year’s event superb as ever. Each year, it is great to see so many familiar faces and meet many new people. I would like to share some photos with you from the conference, here on the blog. Can you find yourself in any of the pictures?


Fanny Littmarck | October 16, 2013

The COMSOL Conference 2013 Boston finished up on Friday last week. There were lots of excellent posters and user presentations, and some enriching conversations during the coffee breaks. On Thursday, our three keynote speakers took to the stage and treated us to each of their multiphysics simulation stories. Here’s a round-up of who presented and what they shared with the audience.


Prajakta Sabnis | October 25, 2013

After having excellent poster and oral presentation sessions at the COMSOL Conference 2013 Bangalore, winners for the top papers and posters were announced during the award ceremony. Selecting the best ones was indeed the toughest decision that the Program Committee had to make. It was observed that the presenters had conducted rigorous analyses using COMSOL Multiphysics, and many of them also had experimental validation for their work. Now I would like to congratulate the winners once more, and allow you […]


Nandita Roche | October 23, 2013

At the COMSOL Conference 2013 Bangalore we had three speakers who delivered each of their keynote talks to a full house. It was an interesting mix, with one speaker each from the government, academic, and corporate backgrounds. Here is a glimpse of what attendees got to listen to.


Fanny Littmarck | October 21, 2013

Microelectromechanical systems, also referred to as MEMS, involve very small devices, such as actuators, sensors, and resonators for instance. Inherent to the design of these devices is the coupling of many physics. Therefore, if you are an engineer who designs MEMS devices, you are likely familiar with multiphysics simulation software. If not, you can learn how to model these devices in our upcoming free webinar.


Jennifer Segui | October 17, 2013

The mining industry pre-dates sophisticated simulation software and the computers it runs on by thousands of years. As an essential modern industry, however, the technical and analytical capabilities offered by AMPHOS 21, a COMSOL Certified Consultant, are critical for both understanding and optimizing mine operations. Recently, we sponsored a webinar together with NASA Tech Briefs on “Mining and Hydrogeology: Porous Media Flow Simulations with COMSOL”, featuring environmental consultants Jorge Molinero and Elena Abarca from AMPHOS 21. Here are some of […]

Walter Frei | October 15, 2013

In this first blog entry of our new solver series, we describe the algorithm used to solve all linear static finite element problems. This information is presented in the context of a very simple 1D finite element problem, but is applicable for all cases, and is important for understanding more complex nonlinear and multiphysics solution techniques to be discussed in upcoming blog posts.

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