Using Geometry Parts and Part Libraries in COMSOL Multiphysics®

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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Thomas Forrister February 6, 2019

A doctor sits down and discusses treatment options with a patient that has coronary artery disease. Typically, a stenting procedure is used to increase blood flow to the heart, but there are complications: The arteries around this patient’s heart have an atypical anatomy. Fortunately, there are self-expanding stents, which can provide the desired fit and even adapt to vessel changes over time. Here, we use simulation to examine how such stents expand to the artery diameter.

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Guest Eric Linvill January 31, 2019

Guest blogger Eric Linvill of Lightness by Design shares how materials modeling provides insight into paperboard formation and bending resistance. Formation is a fundamental physical characteristic of paper that can have profound effects on the production and performance of that paper. The finite element method can be utilized to better understand how formation affects mechanical quality control tests and their results. Using the Lorentzen & Wettre (L&W) bending resistance (15°) test, we investigate how paperboard formation affects bending resistance.

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Henrik Sönnerlind January 30, 2019

You can perform response spectrum analyses with a study type introduced in version 5.4 of the COMSOL Multiphysics® software. In this blog post, we will give an introduction to how you can analyze a structure subjected to a short transient excitation being described by a response spectrum.

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Thomas Forrister January 29, 2019

When you think of fire protection measures, what might come to mind first is the logistics of getting everyone out of the building safely (i.e., without exposure to hazardous smoke, chemicals, and hot temperatures). Supporting these procedures are active measures like alarm and sprinkler systems, and passive measures built into the structure to minimize damage. To ensure that a building is designed with fire protection in mind, engineers can simulate actions on structures exposed to fire.

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