Keynote Video: Improving Synchrotron Light Sources with Applications

Bridget Paulus December 19, 2018

When it comes to synchrotron light sources, brighter is better. By using bright beams in their accelerator, researchers at the Advanced Proton Source (APS) synchrotron facility can efficiently gather detailed data. In collaboration with APS engineers, Nicholas Goldring of RadiaSoft LLC creates and distributes simulation applications for designing vacuum chambers relevant to the APS. Below, find a video recording and summary of his keynote talk from the COMSOL Conference 2018 Boston.

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Bridget Paulus December 13, 2018

Groundwater is an important source of irrigation and drinking water, so keeping it pure is crucial. However, once contaminants get in, it isn’t so easy to get them out — creating systems to remove contaminants from groundwater requires an understanding of the complex way immiscible fluids move through soil. To gain insight into this behavior, engineers can use the phase transport functionality in the COMSOL® software.

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Bridget Paulus December 3, 2018

A pioneer in chemistry, sanitary engineering, and human ecology, Ellen Swallow Richards paved the way for women in science. She was the first woman to attend, graduate, and teach at MIT. During her career, she developed standards for water quality and isolated the chemical element vanadium. In addition, Richards was passionate about using science to create a better home life, founding the field of home economics.

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Bridget Paulus November 12, 2018

Ever wonder why the sky is blue? Lord Rayleigh answered this question, explaining that the color comes from the scattering of sunlight off small particles in the atmosphere. A prolific scientist, Rayleigh made notable contributions to a wide range of fields, including optics, acoustics, and fluid flow. He is best known for discovering argon, an accomplishment for which he won the Nobel Prize in Physics.

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Bridget Paulus October 25, 2018

From tiny cellphone chargers to large-scale generators, transformers are used to increase, decrease, and isolate voltages in all sorts of applications. While these electrical devices have a pretty simple structure, optimizing their performance can be challenging, as it involves accounting for the coupling of magnetic and electric fields, the behavior of ferromagnetic materials, and more. To analyze these effects, engineers designing transformers can use the COMSOL® software.

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Bridget Paulus September 10, 2018

Schottky diodes are one of the oldest semiconductor components, but they are still found in many modern applications, including computers and radar systems. To ensure that a Schottky diode performs well, it’s important for engineers to accurately analyze factors like current density and barrier height in the design. As a benchmark model demonstrates, the COMSOL Multiphysics® software and add-on Semiconductor Module are well suited for this type of analysis.

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Bridget Paulus August 21, 2018

If you’ve ever gone on a road trip, you know that it’s a bit of a pain — literally. Part of why your body aches after driving long distances is due to whole body vibration (WBV), which can cause fatigue; motion sickness; and, eventually, serious health problems. To design systems that reduce WBV for cars and other applications, engineers need an efficient way to visualize the effect of vibrations on the human body. That’s where simulation comes in.

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Bridget Paulus August 6, 2018

Efficient, cost effective, and environmentally friendly, friction stir welding (FSW) is useful for many applications. As the name implies, this process involves using friction to heat materials and then stirring them together. For optimal FSW performance, the generated heat has to be just the right temperature: Too high and the materials melt, weakening the weld; too little and the process is inefficient. Using the COMSOL® software, you can evaluate and improve heat transfer in the FSW process.

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Bridget Paulus July 30, 2018

From home HVAC systems to spacecraft ejectors, diffusers find use in all kinds of applications. For example, diffusers are often used in supersonic aircraft like ramjets to slow down fluid flow and increase static pressure. To design transonic diffusers for supersonic applications, engineers must account for factors like high-speed turbulent flow and shock waves. As this benchmark model illustrates, these complex phenomena can be accurately analyzed using the COMSOL® software.

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Bridget Paulus May 16, 2018

Thanks to their ability to “tune out” specific frequencies, electromagnetic band gaps (EBGs) are found in many different applications. EBGs can suppress unwanted electromagnetic interference (EMI) and increase electromagnetic compatibility (EMC). These structures are commonly used between nearby antennas, which can help minimize undesirable coupling and thereby enhance their performance. However, using an EBG isn’t always a guarantee for better antenna isolation. To analyze the effectiveness of an EBG, engineers can use the COMSOL Multiphysics® software and add-on RF Module.

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Bridget Paulus April 9, 2018

Acyclic generator, unipolar generator, disc dynamo, Faraday wheel: No matter what you call it, the homopolar generator is an interesting device. Unlike most generators, homopolar generators produce high current with low voltage and can store and release large amounts of electricity. Due to these abilities, scientists have worked to improve this device since its invention. To continue this work, you can evaluate the performance of homopolar generator designs using the COMSOL Multiphysics® software.

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