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Power Transistors and Heat Transfer

January 2, 2013

Transistors are building blocks of electronic appliances, and can be found in radios, computers, and calculators, to name a few. When working with electrical systems you typically have to deal with heat transfer; electric heating is often an unwanted result of current conduction. Is a heat sink mounting necessary to keep the transistor cool, or can it manage without? Let’s have a look at power transistors from a heat transfer perspective.

Is Fracking Safe? Scientists Turn to Simulation to Investigate

December 31, 2012

Hydraulic fracturing (popularly referred to as “fracking”) is a method to increase production of oil and gas from certain types of geological formations. It has been used for decades, but recently, as the practice has increased, fracking has become a controversial topic. I will avoid taking sides in this debate, but the fact that there is a conflict implies there needs to be a deeper understanding of the process and its effects.

Modeling a Pratt Truss Bridge

December 28, 2012

The simple design of a Pratt truss bridge makes it useful to hold everything from pedestrians to trains. While this type of bridge is easy to construct, engineers must make sure that it lasts and is safe to use. A bridge needs to hold its own weight, support the load placed upon it, and withstand frequencies generated by wind and earthquakes. To determine whether a Pratt truss bridge design can handle these factors, we turn to simulation.

Keynote Video: Multiphysics Solutions for Advanced Vehicle R&D

December 27, 2012

Hybrid vehicles are no longer a new concept, but that does not mean research and development (R&D) has ceased. If anything, it is ramping up as demand for hybrid design optimization continues to grow. Ercan Dede from Toyota Research Institute of North America held a keynote talk at the COMSOL Conference Boston 2012 on how they are using multiphysics modeling for advanced vehicle systems R&D. If you weren’t there, you can now watch his keynote in a video format instead.

Modeling a Burning Candle, How Would You Do It?

December 25, 2012

This holiday season most of us will have burned our fair share of candles. The flickering light of candles can really enhance the ambiance and put you in festive spirits. This reminds me of an analysis of a burning candle developed by AltaSim Technologies back in 2010. So, in tune with the holiday cheer, here are some candle physics.

Make-shift Air Conditioner: How Engineers Can Stay Cool at Work (Maybe)

December 21, 2012

The winter here in Boston has been very mild so far. A few days I would even have liked to have the air conditioning back on. I checked in with one my colleagues to check if he was having an equally hard time staying cool, and to my surprise, he was not. Why? He had constructed a make-shift air conditioner (A/C).

Multiphysics Simulation for Better and Faster Sonar Development

December 18, 2012

SOund NAvigation Ranging, or Sonar, has been an important part of naval warfare and since the 1950’s. Although it is a relatively simple way to locate objects, it’s the best for doing so in water, emitting sound waves and listening for echoes made by objects in the water. In today’s world of undersea warfare, the threats and the necessary responses to them are becoming more important and urgent. Sonar systems are required to detect these threats, making it necessary for […]

CAD and Multiphysics Interfacing Solutions

December 14, 2012

You may have seen our Specification Chart already, but did you also know we have one specifically for CAD? With the CAD Specification Chart, you can find the CAD and interfacing products that suit your specific needs.


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