Keynote Video: EPFL Uses Simulation to Design a Hyperloop Pod

Brianne Costa January 22, 2019

The EPFLoop team took the stage at the COMSOL Conference 2018 Lausanne with their hyperloop pod design, setting it down for the crowd to see. Learn about the different ways that the team of students and faculty from the École Polytechnique Fédérale de Lausanne, led by Mario Paolone and including Nicòlo Riva, Zsófia Sajó, and Dr. Lorenzo Benedetti, used multiphysics simulation to land in the top spot for hyperloop design at the 2018 SpaceX competition.

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Brianne Costa January 21, 2019

In a fluid-structure interaction (FSI) scenario, the fluid can affect the structure, the structure can affect the fluid flow, or both. When modeling a device that relies on FSI, you may want to simulate one of these options, a combination, or all three. The Fluid-Structure Interaction multiphysics coupling in the COMSOL® software makes it easy to implement FSI in your analyses. In this blog post, we study the flow through a ball check valve for different flow directions and pressures.

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Brianne Costa January 8, 2019

It’s safe to say that Stephen Hawking is one of the most influential and highly regarded theoretical physicists in history. Besides contributing to the fields of astronomy and cosmology, Hawking inspired multiple generations with a curiosity for space exploration and a love of physics.

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Brianne Costa November 28, 2018

Panel discussions combine all of the best elements from the COMSOL Conference into one session, with learning opportunities and software news on par with the minicourses, chances for one-on-one discussions with COMSOL developers and fellow engineers, and inspiration like that gleaned from keynote talks about using simulation in specific industries. See what past panelists and moderators think of the panel discussions…

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Brianne Costa November 26, 2018

Signal Microwave develops high-frequency coaxial connectors in the RF and microwave industry, including end launch connectors, vertical launch connectors, and field replaceable connectors. At the COMSOL Conference 2018 Boston, Eric Gebhard of Signal Microwave discussed how using the COMSOL Multiphysics® software gives the company both a design and business advantage. Watch the keynote talk and get a quick summary below.

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Brianne Costa November 8, 2018

The COMSOL Conference 2018 Lausanne provided attendees with an exciting taste of all that Switzerland has to offer, including a musical performance by alpine horn players, a traditional Swiss wine and cheese reception, and a trip to the European Organization for Nuclear Research (CERN) in Geneva. Just as diverse were the research presentations given by conference attendees, who traveled from around Europe, and as far as South Africa, to discuss their innovative work with our multiphysics simulation community.

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Brianne Costa October 30, 2018

Is the boundary element method (BEM) a viable alternative to FEM for magnetostatics modeling? In a three-part series of tutorials, we perform electromagnetic force calculations using the Maxwell stress tensor to demonstrate the capabilities of BEM. The results are validated against analytical models and compared with results from FEM to show the value and utility of boundary elements for this purpose. Read on for a preview of what you’ll learn in the tutorial series.

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Brianne Costa August 30, 2018

In 1880, Alexander Graham Bell wrote a letter to his father, saying: “I have heard articulate speech by sunlight! I have heard a ray of the sun laugh and cough and sing!” He was talking about his latest success, the photophone, which he called his “greatest invention” shortly before his death. The photophone did not revolutionize the field of imaging, but an unintended effect Bell noticed while developing it did…

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Brianne Costa August 14, 2018

If you ever visit the extravagant dome within St. Paul’s Cathedral in London, be careful what you say. As Lord Rayleigh discovered circa 1878, the vaulted structure exhibits an interesting acoustics phenomenon: Whispers from one part of the dome can be clearly heard in other areas. Rayleigh called the effect a “whispering gallery”. Surprisingly, you can observe a similar effect in another field of science entirely: light waves traveling in an optical ring resonator.

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Brianne Costa July 31, 2018

The Oldroyd-B numerical model defines flow in fluids that exhibit complex viscoelastic behavior under strain, such as clay, toothpaste, oil, and polymer solutions. In a benchmark model of an Oldroyd-B fluid, the COMSOL Multiphysics® software and add-on CFD Module are used to solve the numerical model, the results of which have been validated by published research.

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Brianne Costa July 11, 2018

The word “turbocharged” is often used colloquially to describe increased speed, such as “turbocharged” coffee that energizes you faster than a regular cup of joe. Actual turbochargers also increase speed, but in combustion engines instead of your morning mug. Turbochargers operate via turbine-driven forced induction and often rely on hydrodynamic bearings for support. However, these bearings naturally include cross-bearing forces that cause negative damping and system failure. Using rotordynamics modeling, you can analyze how these forces affect turbocharger designs.

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