This Week in CFD

Let’s begin this week’s CFD news dump (a less artful term than curation) with jobs and it seems there are a lot of them. We also have a couple articles of the type that make you go “Hmm” – one on open research, the other of passion being detrimental. And among all the other software and application news there’s one bit of software noted that’s not directly CFD but I bet all of us could’ve used at one time or another. I’ll leave it to you to figure out which one I’m referring to. The image shown here recalls the time our friends at CRAFT Tech and NAVAIR meshed an aircraft carrier to do a wind over deck simulation. We used to have coffee mugs with this image on them it’s so cool.



  • Undergraduate students attending SC21 (planned to be in-person!) have until 28 June to apply for the HPC Immersion program which guides them through the event and its experiences.
  • Registration (free!) is open for this summer’s International Meshing Roundtable, an online event, on 21-25 June.
  • APS DFD 2021 will be held in-person (!) on 21-23 November in Phoenix. Your abstract is due 02 Aug.

News from Cadence Including the Companies Formerly Known as Numeca and Pointwise and This May Be the Longest Blog Headline I’ve Ever Written.

  • Cadence launched [unleashed] Clarity 3D Solver Cloud, access to cloud-based HPC resources at AWS for electromagnetic field simulations for PCBs.
  • Cadence released FINE/Marine V10.1.
  • Cadence released Pointwise V18.4 R4. [And it’s already been cracked! I’ve seen the tweets!]
  • Both the former Numeca and former Pointwise teams are hiring. See above.
Cadillac shaved 9 months off the development time of their Lyriq SUV through the use of digital simulation. (Finally an application article with an actual CFD image.) Image from See link below.

Grab Bag

Thanks to alert reader Artyom for sharing the “mesh burger” he encountered in his favorite hamburger restaurant.


  • WebPlotDigitizer: Have you ever needed to “reverse engineer” an XY plot to extract it’s actual numerical data? Back in the day we did that by hand with a paper template the size of an index card onto which were scribed various scales that hopefully matched the scale in the printed plot. Now there’s an open source [opensource, open-source?] app that looks really handy.
  • Video: The Basics of Meshing (in SimScale)
  • Fascinating two-part video series from Keenan Crane at Carnegie Mellon Univ. on the topic of Geometry Processing with Intrinsic Triangulations. Part 1. Part 2.
  • PowerFLOW now does compressibility.
  • Cranfield University’s UCNS3D flow solver is open-source and high-order.
  • Spatial released 2021 1.0.1 including meshing for built environments.
  • ICYMI, Distene is now part of Dassault Systemes and their software is now known as 3D Precise Mesh (formerly MeshGems or GHS3D). [I’ll resist the temptation to tease my friends Mark and Laurent about what an imprecise mesh is. And yes, I’ve given them a perfect softball to see whether they’ll take the bait.]
Wind over a sports stadium by Mott MacDonald using SimScale. Image from See link below.

CFD for…

Grid, Heal Thyself

If you stare at the center of this grid long enough, the regularity seems to push toward the left and right boundaries and improve the mesh quality in those regions.

If only it were that easy in practice. See more at Healing Grid on

The Healing Grid. Image from © 2005 Ryota Kanai. See link above.

Speaking of illusions, check out Impossible Grid Typography, 3rd place winner of Best Illusion of the Year for 2020.

Bonus: Consider this interesting viewpoint – obsessing over a person’s passion for aerospace is counterproductive.

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