This Week in CFD

gatech-turbThis week’s CFD news starts with an intriguing article about posits, an alternative to floating point numbers that are said to provide faster and more accurate computations. Coming soon to a computer near you? There are several very cool articles about applied CFD including the one illustrated here from Georgia Tech about simulation of turbulence, combustion, and heat transfer. Also, what do you know about the guts of CFD?

News & Jobs


CFD simulation of a greenhouse module for a lunar base. Image from

CFD for…

From Pointwise


In the future, cars will be designed with the mesh as an integral component. At least that’s how I interpret this image. Screen capture from the video BMW Vision Next 100.



I love a good mesh pic. This one is from Altair’s OptiStruct in an article about the use of GPUs in simulation. Image from


  • libfive is a “software library and set of tools for solid modeling, especially suited for parametric and procedural design.” [It appears to be based on constructive solid geometry, CSG.]
  • Kitware’s CMB (computational model builder) is a framework that “leverages several powerful open-source tools and integrates them into an application framework that can be easily adapted to specific problem domains.”
  • PreCICE v.1.5.2 was released. It’s a “coupling library for partitioned multi-physics simulations.”
  • ParaView 5.6.1 was released.
  • SolidWorks [SOLIDWORKS? Solidworks?] 2020 Beta is ready for you to test.
  • Hawk Ridge Systems wrote an introduction to SIMULIA XFlow, a Lattice-Boltzmann CFD code.
  • OpenFOAM 7 was released.

Weird Shoe Science

As a break from my often forced attempts to relate art to meshing and CFD, here are two reports from the fringes of science. After all, just one article in a week about shoes is an oddity. But two are a trend.

Have you ever wondered why shoelaces come untied? Scientists did and contrary to popular belief they found that rather than loosening slowly over time a knot’s failure is rapid and catastrophic.


Screen capture from a video at showing in slow motion how shoelaces come untied.

Given that I just had my coffee before starting to write this blog post, it was coincidental that I saw DEVELOP3D’s article about the benefits of shoes made from recycled coffee. I had to think for a minute exactly what they meant by recycled coffee but after getting over that mental hurdle I read that coffee yarn is antibacterial and tends to vent odors better that conventional materials.


Shoes made from recycled coffee. Image from See link above.

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2 Responses to This Week in CFD

  1. Steve Karman says:

    Those triangles on the BMW need to curve!

  2. mostafa says:

    “A case study: Using CFD to Help Increase the Safety of Driverless Cars. Thank you to author Khalid Khalil.” If any one can help I would like to read this publication or thesis if it was available. Thank you

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