This Week in CFD

News

  • Why do engineers hate their current CAD system? According to an Engineering.com survey featured in an Onshape blog post there are four main things to hate. #2 “It is too difficult to import/export files.” Interoperability rears its ugly head again. [When you read their list, remove the word “CAD” and see if those reasons could apply to other CAE software in your arsenal.]
  • AIAA announced the 2018 class of Associate Fellows. [If you know someone on the list, why not send them a congratulatory email?]
  • There’s plenty of time to register for the Pointwise Meshing Technology Conference in Stuttgart on 4-5 December. As the name implies, this event is all about sharing the details of meshing techniques, geometry handling, mesh effects on CFD solutions, and more.
moldex-runnerdesignfig5

Comparison of old and new meshing strategies in Moldex-3D R15. Image from injectionmolding.org. See link below.

Events

  • Razvan Apetrei provides a nice summary of the recent Royal Aeronautical Society CFD and MDO Conference. [I‘m not saying that just because the NASA CFD 2030 Vision is mentioned.] You can read the full conference agenda online.
    • Mesh adaptation is cited as the technique for reducing the preprocessing burden.
    • Interoperability arises here too in terms of facilitating the exchange of data from CFD solver to postprocessor.
    • What I missed seeing was a mention of high-order meshing (i.e. non-linear elements) for RANS simulations (versus LES or DNS as high-order techniques).
  • The 2018 Code_Saturne User Meeting will be held on 5-6 April at the EDF Lab Paris-Saclay and will include news on both Code_Saturne and a multiphase flow solver. Registration is not open yet.
  • Flow Science has made available online the proceedings of their 2017 FLOW-3D Americas Users Conference. It appears that registration is required.
  • The 6th European Conference on Computational Mechanics and the 7th European Conference on CFD (ECCM ECFD 2018) will be held 11-15 June 2018 in Glasgow. Abstracts are due 15 December.

Applications

converge-ge-relight

Screen capture from a video included in a very cool article about the use of Converge CFD to simulate gas turbine relight for GE.

Geometry Made Real

Photographer Hiroshi Sugimoto (I’ll always think of him as a photographer despite his other works) has produced a series of Mathematical Models by machining aluminum into mathematical formulae. These and others would be interesting to try to create via 3D printing.

sugimoto-hypersphere

Hiroshi Sugimoto, Hypersphere: Constant Curvature Surface Revolution of Hyperbolic Type, 2012. Image from the artist’s website. See link above.

Bonus: If you’ve read Neal Stephenson’s novel Seveneves [and if you haven’t I recommend it but you might not want to click the link to avoid a minor spoiler] you should check out this simulation of the plot’s main catalyst.

Double Bonus: The lowly tetrahedron has a property that’s quite unique; each face shares an edge with every other face. The only other shape known to exhibit this property is the slightly more complex Szilassi polyhedron, comprised of seven hexagonal faces.

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2 Responses to This Week in CFD

  1. Seveneves is a great book and that’s a fascinating simulation! Don’t know if you’ve read any Greg Egan, as a mathematician he’s also written some pretty cool software to showcase some of the science behind his stories at http://www.gregegan.net/.

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