Hydrodynamic Thermal Transport in the Kinetic-Collective Model

Guest F. Xavier Alvarez February 28, 2019

Today, we invite guest blogger F. Xavier Alvarez of Universitat Autònoma de Barcelona (UAB) to discuss modeling heat transfer at the nanoscale using a novel theoretical framework and the COMSOL Multiphysics® software.

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Christopher Boucher February 27, 2019

When analyzing optical designs, it is essential to consider not only light intensity but also polarization. Careful manipulation of light polarization can greatly improve image quality by filtering out light from unwanted sources — for example, to minimize glare. A useful way to learn about light polarization, and how to manipulate it, is through a Fresnel rhomb. With the COMSOL Multiphysics® software, engineers can model the effect of a Fresnel rhomb and similar elements on light polarization in optical systems.

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Daniel Ericsson February 26, 2019

Industry 4.0 and digital twins are buzzwords we hear on a daily basis. But how far have companies come, and how does COMSOL come into play in the new era? Here, we will look into one successful case, where ABB Traction Motors intends to make mass customization available by using simulation applications for electric motor design. By turning high-fidelity multiphysics models into simulation applications, new analysis capabilities are planned to be available to several departments, from product design to sales.

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Emily Ediger February 25, 2019

Chemist Ida Noddack was the first person to theorize the possibility of nuclear fission; a concept that, up until recently, she did not receive credit for. Noddack is also known for her collaborative discovery of the element rhenium.

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Magnus Ringh February 22, 2019

Using geometry parts, created by you or added from any of the part libraries available with the COMSOL Multiphysics® software and some of its add-on modules, can greatly simplify and streamline the construction of more complex geometries for your simulations. Here, we show you how you can add and make use of geometry parts and create user-defined part libraries.

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Ed Fontes February 20, 2019

We’ve already determined that the concept of digital twins is more than just hype. In this blog post, we discuss how high-fidelity multiphysics models can be combined with lightweight models and measured data to create digital twins that can be used to understand, predict, optimize, and control the real system and the model of the real system. This is exemplified with a battery pack for hybrid vehicles.

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Ed Fontes February 19, 2019

Is the term “digital twin” just hype, or a trick to get a new angle to sell modeling software? In this blog post, we discuss the difference between models, applications, and digital twins. We conclude that although the term has been misused to a certain extent (in relation to the original formulation), there is substance behind it.

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Thomas Forrister February 18, 2019

Ernst Mach made many significant contributions to the fields of wave dynamics, optics, mechanics, and more. A physicist by education and profession, his interest in psychology and philosophy sharpened his thoughts about physics, helping him make connections that he might not have otherwise made. In particular, Mach’s outlook on how we experience sensations from external stimuli informed his approach to physics experiments and led him to exciting discoveries.

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Brianne Christopher February 14, 2019

Price is a common lament among coffee drinkers, with upscale roasters and chains charging upwards of five dollars for a single caffeine fix. Brewing your own coffee can cut down on the expense, but if you invest in high-quality coffee beans, you’ll want to ensure that their flavor and aroma last. A popular “life hack” is to put them in the freezer, but is this effective? To answer this question, let’s turn to science…

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Bridget Paulus February 12, 2019

Heating circuits can be found in airplanes, electronic message boards, medical storage devices, and much more. Like many other heating elements, these circuits work through resistive heating, a multiphysics process involving electric currents, heat transfer, and structural deformation. To account for these phenomena and other key design factors, engineers can create virtual prototypes of heating circuits using the COMSOL Multiphysics® software.

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Emily Ediger February 8, 2019

In 1869, Dmitri Mendeleev organized the elements by atomic weight, creating a tool that not only arranged the discovered elements but also left gaps that predicted future discoveries. Mendeleev’s periodic table of elements evolved into a reference tool that would be used by scientists around the world for years to come.

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