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<p class="MsoNormal">Cool. Or maybe use machine learning to invert the low-dimensional description of the phenomenon..<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> Friam <friam-bounces@redfish.com> <b>On Behalf Of
</b>Roger Critchlow<br>
<b>Sent:</b> Thursday, June 29, 2023 4:26 PM<br>
<b>To:</b> The Friday Morning Applied Complexity Coffee Group <Friam@redfish.com><br>
<b>Subject:</b> [FRIAM] bespoke turbulence<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I was going to post the University of Chicago press release, <a href="https://phys.org/news/2023-06-tempest-teacup-physicists-breakthrough-turbulence.html">https://phys.org/news/2023-06-tempest-teacup-physicists-breakthrough-turbulence.html</a>,
but let it slide until this other article turned up, <a href="https://phys.org/news/2023-06-approach-properties-turbulence.html">https://phys.org/news/2023-06-approach-properties-turbulence.html</a>, the original report is paywalled at <a href="https://www.nature.com/articles/s41567-023-02052-0">https://www.nature.com/articles/s41567-023-02052-0</a>
with a paywalled editorial comment <a href="https://www.nature.com/articles/s41567-023-02054-y">https://www.nature.com/articles/s41567-023-02054-y</a>. <o:p></o:p></p>
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<p class="MsoNormal">Oh, and there's also <a href="https://arxiv.org/abs/2211.00771">
https://arxiv.org/abs/2211.00771</a>.<o:p></o:p></p>
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<p class="MsoNormal">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.<o:p></o:p></p>
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<p class="MsoNormal">-- rec --<o:p></o:p></p>
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