[Cuis-dev] Ideal gas and real gas simulation

[Juan Vuletich]

This is amazing and beautifol!

Thanks Hilaire!

On 2025-12-07 7:01 AM, Hilaire Fernandes via Cuis-dev wrote:
>
> Hi,
>
> When discussing with Physics teacher at my school, its appears gas 
> simulation is something desired. There are some simulation out there, 
> but they keep mentioning me it is a nice tool to have. So I gave a 
> shoot and start the implementation of a DKM[1] for the Dybo project.
>
> A first iteration was a very naive, kind of billiard: 
> https://mamot.fr/@drgeo/115577138308536197
>
> Then hack some energy transfer from the wall:
>
> https://mamot.fr/@drgeo/115598616477391933
> https://mamot.fr/@drgeo/115600731271105530
>
> However this implementation was not correct from the thermodynamic 
> perspective, so I implement a real diffuse energy transfer model: 
> https://mamot.fr/@drgeo/115623761342500850
>
> This gave a more or less realistic simulation of ideal gas.
>
> The next challenge was to have inter-atomic potential to be 
> considered: atom can be attracted or repulsed from each other. The 
> Lennard-Jones law was used. The tricky part was really the scale and 
> simulation step time:
>
> Atom can get crazy unrealistic velocity 
> https://mamot.fr/@drgeo/115669231450451191 because of not small enough 
> simulation time.
>
> With a fined tuned simulation time and Morph step time of 100Hz, the 
> result are quite interesting: https://mamot.fr/@drgeo/115669511921472246
>
> The final model has both diffuse energy transfer from the wall and 
> inter-atomic potential calculus.
>
> Again, the Cuis environment proved to be extremely helpful to fine 
> tune the algorithm.
>
> Of course this DKM can be used from a Dybo document, as seen there 
> with another DKM: https://mamot.fr/@drgeo/115400315017925601
>
> The aims is develop hundreds of such modules.
>
> Hilaire
>
> [1] 
> https://github.com/Dynamic-Book/doc/tree/main/4-Explanations/200-Dynamic-Knowledge-Models
>
> -- 
> http://mamot.fr/@drgeo
>
-- 
Juan Vuletich
www.cuis.st
github.com/jvuletich
researchgate.net/profile/Juan-Vuletich
independent.academia.edu/JuanVuletich
patents.justia.com/inventor/juan-manuel-vuletich
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