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"CSV files can be easily built with scripting languages or exported at the end of CFD runs"

Crawling folders to locate files is one way to get ensemble data into Chorus, but it’s not the only way. You may find it easier or more convenient to create a list and use this to drive Chorus. Read about it here – or watch the video that demonstrates with an example. A sample script that you could use as a starting point is listed here.

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Preserve CAD names on Import

"[T]he bane of the CAD/CAM/CAE world for years remains with us to this day"

This article on localized remeshing has aged well: it’s every bit as relevant today as it was when first published. One of the recommended methods – automatically mapping surface names to meshes – depends on the names of the CAD entities being preserved. The IGES “standard” can be notoriously ill-behaved, so if you’re forced to rely on this route, this 2 minute video is worth reviewing.

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CAD Model Validation

Twenty years ago [some] of these solutions might have had merit; but today ... "

Ever wondered how trustworthy your exported CAD model is? Worse, have you been advised to export as STL and compare that with the NURBS data? This article explains why validation is sometimes required – and how you can do it elegantly, robustly and reliably. Or, if you prefer, here’s a 3 minute video that shows just how to do it right.

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Ensembles – avoid information overload

"take on or be inundated by more than one is capable of handling"

DOE is not the only reason an analyst is tasked with extracting meaningful data from a large number of solution sets. What if you’ve run a grid-dependence study and need to figure out which regions of the domain were most affected? It can feel like looking for gold on a sandy beach, but doesn’t have to.

Chorus, a part of your Tecplot installation, is designed specifically for such scenarios. This hour-long video is well worth the time. Scatter plots, Surrogate Models, Deep-dives: three out of three ain’t bad.

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Base Names and Multiple Entities

"In many languages, the class name is used as the name for the class"

That intriguing and seemingly circular reference is significant if you’re aiming to automate your meshing on the lines of the remarkable effort described in this video and this article.

It makes sense to name the entities in your Pointwise model in a meaningful way: use the entity’s functional purpose as the name for the entity. See this video to learn how easy – and powerful – this approach is.

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Polygon Models to CAD: Can vs. Should

"Letting 'I dare not' wait upon 'I would'"

Analysts, like the cat Macbeth cites, sometimes consider converting a polygonal model into a CAD model. What’s the effort involved? How long will it take? Will the resulting data be good “enough”?

Such conversion is sometimes possible, sometimes ill-advised – and is sometimes almost as bad as assassinating the model. Read this article for a good discussion on the various pros and cons.

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KFour Metrics offers technology solutions for engineering design, simulation and optimization.

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