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Fluid Blog Posts

A Cool Way to Consider the Environment

June 20, 2012

According to a study done by Brunel University in the United Kingdom, the food sector is among the top five energy-consuming industries. The transportation of food, including keeping it refrigerated, is one of the larger contributing factors to this energy-consumption and subsequent greenhouse gas emissions.

Model Explains the Sinking of Bubbles in Guinness

June 11, 2012

Before you drink your next pint of Guinness, have a close look at the bubbles in the brew, and see if they sink. Apparently they do. Now a group of scientists from the University of Limerick in Ireland (where else?) has modeled the phenomenon of sinking bubbles in Guinness beer to lend weight to this finding and provide a theoretical explanation.

IEEE Spectrum’s Insert Cover Story Optimizes Electronics Cooling

June 6, 2012

The June issue of IEEE Spectrum included an insert focused on Multiphysics Simulation. This included a feature on cooling in hybrid cars, articles about metamaterials, the smart power grid, as well as biomedical applications.

News in Particle Tracing for 4.3

June 1, 2012

There are many exciting new features in the Particle Tracing Module for COMSOL Multiphysics version 4.3. The secondary particle emission feature is particularly fascinating. “This new option for the Wall Condition allows you to model filter multipliers and multipactors, which were previously very difficult to model”, says Dan Smith, Development Team Leader at COMSOL. A mathematical expression, like a logical expression containing the particle energy for instance, can be used to determine the number of secondary particles to be released. […]

Giving the Power of COMSOL to the Operator

May 30, 2012

COMSOL News is now available in print and electronically, and you can request your copy of the multiphysics simulation magazine here. One of the great stories concerns a process engineer at Ruukki Metals in Finland, Mika Judin, who not only uses COMSOL to model and optimize his process, but lets the operators use the simulation too.

Heat Transfer: Accounting for the Radiation of the Sun

May 22, 2012

Knowing the sun’s radiation and thermal effects is very important to designers within the building industry, especially in designing “green” buildings. Heat transfer also plays a vital role in designing outdoor devices in terms of maintaining temperatures in extreme hot or cold environments. To use the words of Nicolas Huc, project leader for the Heat Transfer Module development at COMSOL in France: “it makes a huge difference if you forget to take the sun’s radiation into account.”

What’s coming in Particle Tracing for 4.3

April 10, 2012

It’s been fun working with the next release. One of the great new features will be in the Particle Tracing Module and will allow particles to interact with each other, and not only with the macroscopic field they find themselves in. It also produces some pretty cool vids.

Fluid Flow Webinar Round-Up

February 13, 2012

One of the things I have noticed from the FEM vs FVM debate is that when you want to couple other physics to fluid flow, then FEM is the best method to do this with. It’s fitting then that my colleague in our Palo Alto office, John Dunec, ran a webinar this week on Multiphysics Flow Simulations with COMSOL.


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