This Week in CFD

Visualization

Screen capture from the video of vortical flows. See link above.

Screen capture from the video of vortical flows. See link above.

Software Licensing – Ugh

  • DEVELOP3D gets you thinking with a piece on whether Minecraft’s licensing model is one to consider for the future of CAE software as it pertains to portability of the software and your data. [Cloud is mentioned.] The article states that most CAE users have node-locked software. That surprised me because Pointwise has only ever been licensed using a floating model that’s heterogeneous with respect to hardware platform.

Good Reading

Meshing an urban environment. Image from the reported cited above.

Meshing an urban environment. Image from the reported cited above.

Events

Software

  • The thermal analysis tool 6SigmaET has a new CFD solver that aids in thermal simulations of electronics.
  • ThermoAnalytics released Version 11.3 of their software suite.
  • COMSOL Version 5 is written about in Desktop Engineering.
  • In their summary of STAR-CCM+ v9, DEVELOP3D writes that STAR-CCM+ v10 will first appear in February of 2015.
  • Altair fully enabled cloud-based simulation with the launch of Hyperworks Unlimited – Virtual for AWS.

Applications

Screen capture from a video of an OSWC simulation. See link above.

Screen capture from a video of an OSWC simulation. See link above.

  • I don’t know what an OSWC is but this dynamic simulation of it in waves is cool.
  • DNV recently won a competition for accuracy in wind power CFD simulations.
  • Read how Bureau Veritas used Femap as part of their solution for FEA of hull structures.
  • The Leap CFD Blog shares their thoughts on computational aeroacoustics.

Business

  • Monica Schnitger shared ANSYS’ Q3 results: $234 million. That represents an 8% increase in software revenue and a 13% increase in maintenance and service revenue.
  • CFD consulting firm CFD Support announced  partnership with CFTurbo.
  • ADINA R&D in Watertown, MA seeks to hire an Applications Engineer in structures and CFD.

Extruded Tesselation

Artist Sara Morawetz‘ untitled paper sculpture is an “algorithmically generated extruded tessellation based on the dual centroidal diagram for random point sets in R2.”

Sara Morawetz, Untitled,

Sara Morawetz, Untitled,

I would expect to see something like this gracing the walls of CD-adapco’s offices, given what they’ve done with polyhedral meshing.

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Upcoming visit to San Francisco

Pointwise will be attending the American Physical Society Division of Fluid Dynamics conference in two weeks’ time. At the conference, I will be presenting some of my work on quantifying the impact of grid type on solution accuracy (end of session H31, 12:14 pm on Monday) as well as talking with attendees in the exhibit hall.

If you are attending the conference, please stop by and say hello. I always enjoy hearing about different applications of CFD, and I would be happy to help discuss any difficulties you are encountering in your preprocessing workflow.

I look forward to seeing you there! If nothing else, be sure to check out the Gallery of Fluid Motion. It is always worth taking a look.

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This Week in CFD

Software

  • Here’s this week’s “must click” link: WebGL-based fluid experiment. [Must have a “modern” browser and plenty of horsepower to enjoy the full experience.]
  • Maybe our friends who know particle dynamics can validate whether mosh pits are more particulate or fluid.
  • What is Caelus? [And how do you pronounce it? KAY-lus.] It’s a fork of OpenFOAM that’s been cleaned up, made easier to install, and supports Windows and Linux. [Full disclosure: The company behind Caelus includes a former Pointwise employee and the current Pointwise distributor for Australia.]
  • CD-adapco released STAR-CCM+ v9.06 with a slew of new capabilities in performance, accuracy, and preprocessing.
  • Richardson CFD (i.e. UFO-CFD) has a new website.
  • Daat Research released Coolit v.14.
  • Tech Soft 3D released HOOPS Exchange 2015 for 3D CAD data access.
  • DEVELOP3D writes about the latest release of Magics 19 for working with faceted geometry (i.e. STL).
  • CFD World wonders why OpenMDAO is open source.
  • Fast Company is a bit passive-aggressive in their praise of Vim for text editing by labeling it an ’80s text editor. [Yes, I am trying to provoke a vi/Vim vs. Emacs debate.]
There's a new release of PyFR, the open source Python framework. Image from pyfr.org. Click image for website.

There’s a new release of PyFR, the open source Python framework. Image from pyfr.org. Click image for website.

Art

Janet Echelman, Line Drawing, 2006-2007. (Image from echelman.com. See link above.)

Janet Echelman, Line Drawing, 2006-2007. (Image from echelman.com. See link above.)

Events

Applications

  • ESI’s CFD software was used as part of a fluid-structure interaction application for sun shades in Medina and Mecca.
  • The Tame Aerodynamicist shares an introduction to the finite volume method.
  • ANSYS shares a white paper on using CFD for simulating an exhaust gas recirculation cooler.
  • Stanford University students are using Pointwise, SU2, and Tecplot 360 EX to help design their solar car.
  • I seem to recall promising never to post an image of splashed paint again but… what would it look like if you put a Ferrari in a wind tunnel and sprayed it with UV paint? The image below and the ones at the link seem to be a mashup of the best-of and worst-of CFD visualizations.
Fabien Oefner, Ferrari California T. Image from PetaPixel. See link above.

Fabien Oefner, Ferrari California T. Image from PetaPixel. See link above.

People

  • Exa seeks to hire a Senior Software Engineer – CFD Software Development.
  • Congratulations to Keith Martin who’s graduating as a Fellow of the Hydro Research Foundation and did CFD research.

Hardware

Congratulations to CEI for the use of EnSight to create the cover image of Nature magazine. Click image for article.

Congratulations to CEI for the use of EnSight to create the cover image of Nature magazine. Click image for article.

Sculpting via 3D Printing

Artist Moto Waganari wants to create something tangible yet virtual, something solid yet transparent, something that couldn’t be made by hand. His 3D printed sculptures of wireframe humans and other objects are the result. Check out the link for more images and a video.

Moto Waganari, 3D printed sculpture. Image from Visual News.

Moto Waganari, 3D printed sculpture. Image from Visual News.

This reminds me that we at Pointwise need to finalize and release the 3D printing plugin that lets you print your mesh.

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This Week in CFD

All The News

Meshmixer 2.6 was released earlier this month and includes a feature for adding tubes to your 3D models so you can print a Stanford Bunny that shoots water from its eyes. Image from Autodesk 123D blog. Click image for article.

Meshmixer 2.6 was released earlier this month and includes a feature for adding tubes to your 3D models so you can print a Stanford Bunny that shoots friggin’ laser beams water from its eyes. Image from Autodesk 123D blog. Click image for article.

Go Mesh Yourself

At first glance it’s not obvious what artist David Adey’s Hide is. From the closeup detail below you can definitely see triangular faceting.

David Adey, Hide (detail), 2013

David Adey, Hide (detail), 2013

When you take a step back and look at the work in its entirety you still probably won’t have a clear idea of what he’s done.

David Adey, Hide, 2013

David Adey, Hide, 2013

This is a 3D laser scan of the artist’s body (75,000 triangular facets) that has been unwrapped, cut and flattened. You can read more about his intent and process here.

Sooner or later I’m going to have to delve deeper into this trend toward digitization and faceting in art and design.

No This Week Next Week

Everyone from Pointwise will in Anaheim, California next week for the Pointwise User Group Meeting 2014 followed by a fun celebration of Pointwise’s 20th anniversary.

So next Friday morning when I’d normally be writing This Week in CFD I’ll be…

  1. Exhausted
  2. At Disneyland
  3. Unthinking
  4. All of the Above

This Week in CFD will return the following week along with other blog content.

Please keep in mind that next week our response times to your sales and support questions will be longer than usual due to decreased staffing levels. And next Friday our offices are closed.

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This Week in CFD

NASA

Various

From Plastics Today comes this article about resolving boundary layers for mold filling simulations with Moldex3D. Click image for article.

From Plastics Today comes this article about resolving boundary layers for mold filling simulations with Moldex3D. Click image for article.

Computers and Computing

  • Between mobile devices and the cloud you can argue that most everyone is walking around with a supercomputer in their hand. Because of that, two things become important in this age of pervasive supercomputing: a fundamental understanding of computational principles and sufficient network capacity.
  • On a related topic, COMSOL provides an intro to parallel computing.
  • Here are six myths of high performance computing: Part 1 and Part 2.
  • Ribbonfarm manages to weave together a tale involving flow pacing (the manner of injecting chemicals during water treatment), software delivery (the “UX of time”), and an original piece of music in The Rhythms of Information. [And don’t forget to listen to the music.]
  • Autodesk plans to convert all customers to subscription licensing over the next couple of years. Two notable factoids from the article are 1) the subscription model gets all customers on the most recent versions as opposed to perpetual licensees who are several versions behind and 2) for their entry level products the subscription model represents a 30% increase in revenue over current licensing.
  • “Ultimately, it is likely that much more engineering design and computation will occur in the cloud.” True?
  • More news on the quantum computing front.
  • DNS of Turbulent Flows with Parallel Algorithms for Various Computing Architectures
A profile of CFD work at Mercury Marine. Image from Resolved Analytics. Click image for article.

From a profile of CFD work at Mercury Marine. Image from Resolved Analytics. Click image for article.

Visualization

News From the International Meshing Roundtable

A poster illustrating CD-adapco's winning entry for the IMR's Meshing Contest. This year's geometry was London's Tower Bridge.

A poster illustrating CD-adapco’s winning entry for the IMR’s Meshing Contest. This year’s geometry was London’s Tower Bridge.

  • Winner of the Meshing Maestro was CD-adapco with the entry shown above.
  • Winner of the Meshing Contest (contest geometry = London’s Tower Bridge) was INRIA.
  • Best technical paper was Sieger et al “Constrained Space Deformation for Design Optimization”
  • Best technical poster was Ruiz-Girones et al “Optimizing mesh distortion by hierarchical iteration relocation of the nodes on the CAD entities”
  • This year’s IMR Fellow is Paul-Louis George.
  • Next year’s IMR will be in Austin, Texas. [Yee haw, just a couple hours drive south.]

Thanks to @zaidedan for live tweeting the event from which many of theses news items were gleaned.

Grab Bag

A preview of enhanced morphing in STAR-CCM+ v9.06. See link above.

A preview of enhanced morphing in STAR-CCM+ v9.06. See link above.

Hand Knitted Mesh

Artist Alyson Shotz was a recent guest on The Modern Art Notes podcast and I really need to find the time to listen to her episode, especially after being greeted by this image when visiting her website.

The home page of Alyson Shotz' website.

The home page of Alyson Shotz’ website.

The image above seems to be a computer model of her piece Untitled, 2013 made from hand-dyed yarn and pins on wall from an exhibition at the Museum of Contemporary Art in Denver.

Alyson Shotz, Untitled, 2013

Alyson Shotz, Untitled, 2013

P.S. I feel compelled to apologize for the “hot mess” that his post is. Next week might not be any better and there will not be a post on Halloween because we’ll all be basking in post user group meeting glory and beginning a weekend celebration of Pointwise’s 20th anniversary.

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This Week in CFD

Pointwise User Group Meeting 2014

The Pointwise User Group Meeting 2014 will soon be here – 29-30 October in Anaheim, California. To celebrate the company’s 20th anniversary the event is free – but you still have to register, please.

ugm2014-banner-790x200

What’s in it for you?

  • An OpenFOAM Master Class on Monday 27 October conducted by Applied CCM.
  • A full day of seminars on the latest and greatest Pointwise capabilities including a preview of the new overset grid assembly feature suite and the special short course –  chosen by you – on advanced structured grid generation.
  • A full day of presentations on applied CFD and meshing from experts around the globe.
  • Previews of what the future holds for Pointwise mesh generation.

Won’t you join us? Register today.

action-register-today-200x50

And now, one long list.

  • Learn more about EnSight with this slide deck from CEI China.
  • Kitware champions open source in the context of a recent DoE report on high performance computing.
  • FEA for All blogged about Midas NFX for simulation of structures and fluids and claims it’s the “first online FEA.” [Is this correct?]
  • NAFEMS is conducting a survey on the use of computer based design analysis tools. You have until 31 October to participate.
  • Motorsport team Prodrive has chosen Altair’s AcuSolve for their CFD simulations.
  • ParaView 4.2 is now available and includes over 200 resolved issues.
  • Is D-Wave‘s quantum computer the next big thing?
Computational simulation helped explain why there are so many spiral galaxies. Click image for article.

Computational simulation helped explain why there are so many spiral galaxies. Click image for article.

This mesh is from a profile of "CFD icon" David Gosman in HPC Today. Click image for article. Registration required.

This mesh is from a profile of “CFD icon” David Gosman in HPC Today. Click image for article. Registration required.

  • MSC Software announced MSC Apex, a “computational parts based CAE system.”
    • Monica Schnitger writes “pre/solve/post may be a thing of the past.”
    • Design World: “direct modeling and meshing engine may accelerate the CAD-to-mesh process by a factor up to 50X.”
    • DEVELOP3D: “inclined to agree” this is a major breakthrough.
  • Stanford is hosting a symposium entitled “Mathematics, Computing & Design – Where Analysis and Creativity Combine” to celebrate Antony Jameson’s 80th birthday. [I simply wonder whether I’ll be alive at age 80. To also be working at a high level like Jameson at that age would be too much to ask. Hell, to be that productive now would be a miracle for me.]
  • For you visual learners, here’s a video about cubic Bezier curves.
  • CFD will be used to study offshore C02 pipelines.
  • Siemens PLM announced NX 10.
  • Flow Science has made available the proceedings of their 2014 FLOW-3D Americas Users Conference. (Registration required.)
Screen capture of a video showing simulation of a car fire in a parking garage performed using FLOW-3D. Click image for video.

Screen capture of a video showing simulation of a car fire in a parking garage performed using FLOW-3D. Click image for video.

Embroider a Mesh on Your Notebook

Etsy seller Fabulous Cat Papers is offering notebooks hand-embroidered with meshes (and other designs).  You’ll be the envy of the office or classroom with one of these.

A mesh embroidered on a notebook cover from Fabulous Cat Papers. As original seen on This is Colossal.

A mesh embroidered on a notebook cover from Fabulous Cat Papers. As original seen on This is Colossal.

P.S. Please pardon the relative lack of posts in general and the rough formatting of this post in particular. It’s been a hella week, as the kids say.

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CFD Market Report Apology

In Friday’s edition of This Week in CFD I linked to an article that discussed a report from Reportstack entitled Global Computational Fluid Dynamics (CFD) Market 2014-2018 in which the market is forecast to grow at 12.85%. I wrote that I thought that number was contrived.

Upon reflection, that comment is unwarranted and I apologize for impuning the integrity of Reportstack. I have no reason not to believe their forecast. Please note that I’m doing this proactively – no one from Reportstack or anywhere else called me out. I identified my own mistake.

What I should’ve written was that quoting growth rates in a market forecast to two decimal places makes me think the authors don’t understand the concept of significant digits and are trying too hard to make their forecast appear rigorously analytic and believable. What’s wrong with just saying 12%?

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