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anubasu December 17, 2023 03:20
Dynamic Mesh InterFOAM
 
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.

Yann December 17, 2023 09:35
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

anubasu December 17, 2023 13:19
1 Attachment(s)
Quote:
Originally Posted by Yann (Post 861829)
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

Yann December 18, 2023 03:16
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

anubasu December 18, 2023 18:38
Quote:
Originally Posted by Yann (Post 861852)
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

Yann December 19, 2023 03:24
1 Attachment(s)
Quote:
Originally Posted by anubasu (Post 861913)
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)

anubasu December 19, 2023 14:52
Quote:
Originally Posted by Yann (Post 861929)
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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