In a wind tunnel you can get something 3d with a traversing hot wire or similar

Ah that’s what I thought because I was watching amateur videos where they were talking about ''super 3D flow mapping'' and all that... 😂

like that ? https://cdn.discordapp.com/attachments/814043123810304041/1495934467091595264/Rake_Measurement_-Output-850x362.png?ex=69e80d0a&is=69e6bb8a&hm=c4cd0762192dda4923bc7486d6f8f2cf07654a8371b6497884aab096ab9c8988&

Hmm that's a weird setup

But that vibe, yeah

If you want a 3D flow field contour, you need to sample the flow field in 3D 🤷

Well, there's an asterisk to that

You can use the frozen turbulence hypothesis to get a 3D field from 2D observations

But that's not valid for flow around an object

okkkk thanks you vry much !

Sorry, can anyone help me? I have to write my thesis, where I emulate the results of this paper. I've only done the basics of Matlab, and the attached code doesn't work as it should in the example in the PDF file on Rider Kothe. Can someone fix it or help me? I'd be very grateful.

this is the file https://cdn.discordapp.com/attachments/814043123810304041/1496508758942023811/Pirozzoli_CF_2025.pdf?ex=69ea23e3&is=69e8d263&hm=cb844458fc9d5699578bbcfb789a58b3717a6fe7193c077a744f6fd156d184f4&

and this is the code https://cdn.discordapp.com/attachments/814043123810304041/1496508927708500070/Rider-Kothe.txt?ex=69ea240c&is=69e8d28c&hm=eae3659055d09792b0b12ff2b0a494ff879a52c691cb6127276cf400f6c9b85c&

it looks like you're modeling man farting

"Effect of subsonic symmetric pulsed jets on propulsion, wake and drafting dynamics in pelotons"

I hope it also covers the psychological damage for the opponents in the wake

Ah man need to include species equation now

mods please take this silly chap away

LOL

any thermals here?

yes

🙋‍♂️

So, C++ expression templates are being put into the Foundation release. Anyone had an impact because of that?

link please. I see nothing from foundation on google search

https://github.com/OpenFOAM/OpenFOAM-dev/commit/cd92dfdf414dec06faa3a33676b70e793c51030d https://github.com/OpenFOAM/OpenFOAM-dev/commit/0c3a3b322dff166c35e5a43beaeb855164319aac etc.

I hope it's something on the background, no need to change any code.. 🤞

"No AI was used to assist in this development, only RI, blood sweat and tears." 😂

It feels like taking off the restrictions improsed through ``Foam::`` namespaced operations and reverting things back to an in-house version of code where you can practically do anything with the arrays. I expect that the difference will be some better guardrails and still having some logical checks at compile time...

Hey everyone! Can someone help me confirm or correct this: In solvers, the functionObjects execute AFTER runtime.write() ? That is what my particular print statements seem to suggest and I dont know how to fix this, because I have a coded object which solves an equation, but runTime.write() happens before it, so everything is shifted by a single timestep.