Flow inside a cylinder pipe

Asked by Son Tung Dang on 2020-06-15

I would like to simulate an interaction between particles and fluid inside a cylinder pipe.
I saw a couple of test cases in examples, which involve coupling between particles and fluid. But most of them are inside a box.
Is that possible to have fluid flowing inside the cylinder pipe. If yes how can I do that.
Thank you very much!

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Deepak (deepak-kn1990) said : #1

Yes it should be possible to perform such a simulation. You can create a pipe geometry mesh it and set the appropriate boundary conditions in openfoam. In the yade side, use the same pipe geometry (.stl file) generate a facet body from this stl, generate spheres at the interior of the cylinder surface and set the exact boundary conditions you have in openfoam.

For example : for a fully developed pipe flow (i,e. the velocity profile does not vary along the axis), you would require periodic boundary conditions at the 'inlet' and 'outlet' surfaces (along the axial direction), and wall boundary condition over the cylinder surface.
In yade, this same setup has to be maintained, perioidic bcs in the axial direction and solid wall/facet to represent the cylinder surface, and generate spheres using the spherePack utility with the cylinder as the preidcate.

Son Tung Dang (sontd1090) said : #2

Thank you for your comment.
As far as I understand, I need to solve the fluid inside the openfoam, don't I?

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