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Multiphase(Euler) Film coupling

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Old   July 26, 2024, 06:06
Default Multiphase(Euler) Film coupling
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Hello,
I'm relatively new to openfoam and a little nudge in the right direction might help me.
I am trying to simulate a multiphase flow where one phase is a gas and the other phase is dispersed with small particles. The particles should turn into a film on the walls. The size of the geometry is several metres, so I am leaning towards multipaseEuler to represent the particles as a phase. The resolution does not have to be highly accurate. I am currently meshing on the basis of 0.15m.
I have tested multiphaseEuler in openfoam 2312 and the result was not bad from my point of view, but I don't know how to implement the film formation.
In openfoam 11/12 there is a nice module e.g. in the tutorial VoFToFilm. However, this is for compressibleVoF and not for multiphaseEuler. With compressibleVoF I have not yet succeeded in implementing the disperse phase and I do not know whether this is possible.
From my point of view, multiphaseEuler with the coupler (fvModel) of compressibleVoF/film would be the best solution.
Does something like this exist or would I have to rewrite the existing one, does this make sense?
Implementing the disperse phase in compressibleVoF would of course also be good.
Other options are also welcome.

In general, I am open to any thoughts on the subject and look forward to any answers.

Best regards
dovo
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Old   July 26, 2024, 10:29
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Hey!


Based on your description, I would take a look at reactingParcelFoam. You can turn off the unwanted features such as combustion, chemistry etc.

This solver allows you to inject explicit parcels (packages of N particles) and there is a film feature to model thin films on desired patches. You could take a look at the tutorials liquidFilmStepWithSprinklers or splashPanel (and not splashPanelFilm where a separate mesh region is needed).


Another solver is kinematicParcelFoam and its tutorial drippingChair. Run these tutorials and you will probably understand how to set up a working case, they are quite clear.


Good luck!
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Old   July 29, 2024, 11:05
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Thank you very much, I will try it out right now.
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