Fluid

Phil Kinnane | July 26, 2012

Much has been written lately about increasing the energy efficiency of cars. Batteries and fuel cells are very hot topics, and not so long ago I blogged about the University of Michigan’s use of solar cells to fully power a car. Yet, even on the smallest of scales, such as the sensors in your car, improvements are being made. Utilizing a MEMS (Micro Electromechanical System) piezoelectric energy harvester, Alexander Frej and Ingo Kuehne at Siemens Corporate Technology in Munich are […]

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Valerio Marra | July 19, 2012

Remember those retro desk ornaments of the 1960’s, those lamps filled with colorful wax that began to move when the lamp was lit? I’m talking about lava lamps, or as I like to call them, “Rayleigh–Taylor instability machines”. They may not be popular among today’s youth, but I still own one and I thought it would be interesting to look beyond the dyed blobs of wax and observe the physics involved in lava lamps.

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Phil Kinnane | July 17, 2012

Düsensauginfiltration (DSI) is a novel technique for lowering water levels at mining and construction sites while not actually having to transport the water away from these sites. This came to my attention at the latest COMSOL Conference in Stuttgart. There, Ph.D. student Yulan Jin and Assistant Professor Dr. Ekkehard Holzbecher from the Georg-August University in Göttingen, Germany was presenting their research into this groundwater lowering technique.

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Phil Kinnane | July 16, 2012

David Kan has previously blogged very well about the Pipe Flow Module, where he described the fundamentals behind this new product of ours. Now, you can see this module in action at a webinar run on July 19th. Check out the details and registration for the upcoming Pipe Flow Simulation Using COMSOL webinar.

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Phil Kinnane | July 10, 2012

During the last few months, we have been offering “lunch time tutorials” for users and others interested in multiphysics modeling. In these webinar-run tutorials, we choose an application and spend a bit of time looking at it, and how to model it in detail. We’ve already reported about an example that models a gate valve and now we are ready to offer an example related to pollution, namely that of a particle plume that spreads throughout a room.

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Fanny Littmarck | July 2, 2012

We’ve been running these “Lunch Time Web Tutorials” over the past couple of months, featuring 45 minutes of solving a particular problem following a comprehensive step-by-step format. Each webisode involves a different type of engineering problem, one of which focused on the modeling of a gate valve in a pipe branch. We are now making this available as a set of two videos for those who missed the live tutorial.

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David Kan | June 22, 2012

We developed COMSOL Multiphysics to empower the engineering and science communities with state-of-the-art simulation tools. A key ingredient of this empowerment is flexibility. COMSOL users are already well aware of the full compatibility between various physics. This means you can put any (yes, really any) combination of COMSOL physics together. But that’s not the only way our multiphysics simulation tool is flexible.

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Phil Kinnane | 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.

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Phil Kinnane | 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.

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Phil Kinnane | June 4, 2012

One of the interesting stories from this year’s COMSOL News is the article concerning Johnson Screens®. They manufacture steel screens to block debris in water for pipes and valves. Their challenge is to design water intake screens with openings large enough for an unimpeded flow of water, but small enough to block enough debris depending on a specific application. This means that each screen must be custom-designed taking into account the characteristics of the debris and the depth at which […]

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Phil Kinnane | May 31, 2012

You may already be familiar with large regenerative heat exchanger (RHX) systems, but what about much smaller micro-channel systems? That’s just the type of invention the research teams at Intellectual Ventures (IV) are working on.

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