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Moore’s Law for Solvers

September 12, 2012

At the heart of any simulation software are the solvers. Those are things that take geometry/mesh/physics to the computational results. While it’s convenient to think about solvers in terms of the type of study (think time-dependent, parametric, or eigenvalue), there is a hierarchy of solvers that are usually employed. And at the foundational level of any simulation — and for every iteration — there is a linear solver.

Multiphysics Makes Single Physics Simulations Better

September 11, 2012

Coupled physics phenomena (like electrical heating, fluid structure interaction, and conjugate heat transfer) demand multiphysics, which I’ve written about previously in “What is Multiphysics?”. But what if you just have a simple analysis to do — one that has been simplified to the point where only a “single physics” (to coin a term) is considered? What benefits does multiphysics have for this?

The Stresses Subsea Cables are subjected to

September 5, 2012

In these days of globalization, keeping the world connected is imperative. Information needs to pass as freely and quickly as possible in order to keep markets up-to-date with the latest news and to ensure that commerce can be conducted without hindrance (at least of the technical kind). So what do you do – look to the sky? The answer is no; in fact, 99% of this information is carried by undersea cables. These unsung heroes sit at the bottom of […]

What Is Multiphysics?

September 4, 2012

If you’re a cynic (like I am sometimes), the term “multiphysics” might irk you. There’s only one set of physical laws, after all. There’s nothing “multi” about it. So what is multiphysics?

Solar Radiation: How Engineers Can Stay Cool on the Beach (Maybe)

August 29, 2012

The end of August marks the end of summer here in New England. Already nostalgic and unwilling to let the season go, I decided to look into some “beach physics”. In May we released a new solar radiation feature in our Heat Transfer Module that will be helpful in many solar applications — including how to avoid overheating on the beach, apparently. Here’s how engineers can stay cool on the beach.

Video Tutorial: Create 1D Plots in COMSOL

August 28, 2012

Would you like to plot your own expressions in COMSOL? Have you ever wanted the power to measure parameters from your virtual model at whatever point you’d like, just as you would in a physical model? This new postprocessing tutorial video duo explains how to create 1D plots in COMSOL.

New Book from One of the Greats in Chemical Engineering Education

August 22, 2012

COMSOL has had a great relationship with Emeritus Professor Bruce Finlayson of the University of Washington. I first saw him back in 2002 at an American Institute of Chemical Engineering (AIChE) meeting where he gave a presentation on the use of modeling in chemical engineering education. As a former President of AIChE and with a resumé covering some of the leading research and industrial advances within chemical engineering, I was quite intrigued by him taking the time and effort to […]

Modeling a Light Bulb, All Forms of Heat Transfer

August 21, 2012

When it gets dark, you flick on the lights. If you were to model this simple example, you would need to take all forms of heat transfer within consideration; convection, conduction, and radiation are all at play when a light bulb is flicked on.


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