[FRIAM] bespoke turbulence

[Roger Critchlow]

Not lurking, busy most mornings, getting doctors to fix some stuff for me.

-- rec --

On Thu, Jun 29, 2023 at 6:30 PM Frank Wimberly <wimberly3 at gmail.com> wrote:

> We were talking about related questions in Virtual Friam today.  Were you
> lurking?
>
> ---
> Frank C. Wimberly
> 140 Calle Ojo Feliz,
> Santa Fe, NM 87505
>
> 505 670-9918
> Santa Fe, NM
>
> On Thu, Jun 29, 2023, 5:26 PM Roger Critchlow <rec at elf.org> wrote:
>
>> 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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