[FRIAM] bespoke turbulence

[Marcus Daniels]

Cool.  Or maybe use machine learning to invert the low-dimensional description of the phenomenon..

From: Friam <friam-bounces at redfish.com> On Behalf Of Roger Critchlow
Sent: Thursday, June 29, 2023 4:26 PM
To: The Friday Morning Applied Complexity Coffee Group <Friam at redfish.com>
Subject: [FRIAM] bespoke turbulence

I was going to post the University of Chicago press release, https://phys.org/news/2023-06-tempest-teacup-physicists-breakthrough-turbulence.html, but let it slide until this other article turned up, https://phys.org/news/2023-06-approach-properties-turbulence.html, the original report is paywalled at https://www.nature.com/articles/s41567-023-02052-0 with a paywalled editorial comment https://www.nature.com/articles/s41567-023-02054-y.

Oh, and there's also https://arxiv.org/abs/2211.00771.

So you put your fluid in a cubic reservoir with a vortex ring gun at each corner of the cube aimed at the center of the cube.  You can make free floating blobs of turbulence in the center of the reservoir by shooting combinations of vortex rings.  Vary the combinations of vortex rings and you vary the properties of the turbulent blob.  So for whatever varieties of turbulence you can synthesize and instrument, you now have an analog computer for finding properties and calibrating your digital simulations.

-- rec --
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