This Week in CFD

Posted on March 12, 2021 by John Chawner

This week’s CFD news is dominated by applications but overshadowed by the image of the week from your friends at Ferrari (shown here). It’s a CFD solution, but probably not what you think at first. There are also some notable long-form topics like a series of videos on discrete differential geometry, fluid mechanics, and an ebook about multiphysics CFD. The business news from the CAD/CAE world continues to improve and although folks seem unable to make accurate predictions right now the general trend is upward.

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Geometry Modeling and Mesh Generation – Part 2

Posted on March 11, 2021 by John Chawner

In part 1 of this 3-part series, we introduced you to our paper on Preparing Geometry Models for Mesh Generation and CFD. With geometry preparation and mesh generation representing a significant bottleneck in CFD workflows, it’s important for everyone to understand why.

The first major section of the paper provides background on the various methods used to represent not only geometry but topology, the latter being essential in many cases for the modeling of complex shapes such as aircraft, jet engines, and automobiles.

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This Week in CFD

Posted on March 5, 2021 by John Chawner

Visualization is such a big part of CFD (for better or worse) that an article included in this week’s compilation of CFD news should make for interesting reading: lessons learned from developing open-source visualization software. The financial news from the CAE world continues to show increasingly positive results which is a good sign that we’re putting the economic effects of Covid-19 behind us. And make certain you update your calendars for the rescheduled AIAA Aviation. Shown here is a teaser of a beautiful mesh in our image of the week from NASA.

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Geometry Modeling and Mesh Generation – Part 1

Posted on March 4, 2021 by John Chawner

NASA’s CFD Vision 2030 Study stated that “most standard CFD analysis processes for the simulation of geometrically complex configurations are onerous.” A major factor contributing to this perception is the preparation of geometry models for mesh generation, a task deemed a “significant bottleneck” in CFD workflows.

Why this should be so is often unclear. Many CFD practitioners know it to be true while also not fully appreciating the underlying reasons. That’s why we wrote Preparing Geometry Models for Mesh Generation and CFD, a 20-page paper that’s freely available on our website.

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This Week in CFD

Posted on February 26, 2021 by John Chawner

This week’s CFD news, while formatted differently, includes all the usual suspects including an article about whether CAD files are going the way of the dodo. There’s a tasty CFD application involving gelato. The application case study about cars driving backwards makes me wonder about doing CFD on a plane flying backwards. And if you’ve ever wondered why geometry modeling is to mesh generation as turbulence modeling is to CFD, there’s a paper you need to download. Shown here is a screen cap of the video of the week of supersonic flow over a cylinder by Matthias Maier.

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