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Old   December 17, 2023, 03:20
Default Dynamic Mesh InterFOAM
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Anurag
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Hi All
I am trying to simulate air-water flow inside a pipe using interFOAM. Does interFOAM comes automatically with dynamic mesh? or do I have to implement it? I am using the angleduct tut solver.
Thanks.
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Old   December 17, 2023, 09:35
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Hello,

Yes, interFoam includes dynamic mesh capabilities.

Code:
Solver for two incompressible, isothermal immiscible fluids using VOF
phase-fraction based interface capturing.
With optional mesh motion and mesh topology changes including adaptive
re-meshing.
In OpenFOAM, dynamic mesh is a pretty broad term encompassing techniques where mesh is changing over time.
You should be able to find few examples in the interFoam tutorials (look for tutorials using a dynamicMeshDict file)

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Yann
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Old   December 17, 2023, 13:19
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Quote:
Originally Posted by Yann View Post
Hello,

Yes, interFoam includes dynamic mesh capabilities.

Code:
Solver for two incompressible, isothermal immiscible fluids using VOF
phase-fraction based interface capturing.
With optional mesh motion and mesh topology changes including adaptive
re-meshing.
In OpenFOAM, dynamic mesh is a pretty broad term encompassing techniques where mesh is changing over time.
You should be able to find few examples in the interFoam tutorials (look for tutorials using a dynamicMeshDict file)

Regards,
Yann

Hi Yann
Hi Yann, Thanks. I am just wondering whether I would require dynamic mesh for my problem. It is water falling from a height and flowing inside a 3d pipe with a vertical height. The air-water interface seems to be strange near the fall but becomes smooth as it flows rightwards. Attached is the picture.

Also if I want to implement dyn mesh for my problem, are there any good learning materials?

Thanks
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Old   December 18, 2023, 03:16
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It is strange indeed but I don't know what is going on.
In ParaView, could you plot cell values rather than node values?

Yann
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Old   December 18, 2023, 18:38
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Quote:
Originally Posted by Yann View Post
It is strange indeed but I don't know what is going on.
In ParaView, could you plot cell values rather than node values?

Yann
Hi, I tried doing it i think. But no effect. BTW how do you plot cell data instead of node. I clicked cell data to point data in filters. Does it work for contour plots?

Thanks
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Old   December 19, 2023, 03:24
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Quote:
Originally Posted by anubasu View Post
BTW how do you plot cell data instead of node. I clicked cell data to point data in filters. Does it work for contour plots?
If you are using paraFoam you have both node and cell values by default (see screenshot)
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Old   December 19, 2023, 14:52
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Quote:
Originally Posted by Yann View Post
If you are using paraFoam you have both node and cell values by default (see screenshot)
Hi, No they are coming the same error.
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