[mar86cfd]

Hi guys,

(Im new to CFD and new to OpenFoam)

I am currently trying to model a pipe flow with a fibre inside a pipe with an axial velocity u_F.

To give you a better understanding of this case you can have a look on the enclosed pic.

I started with the pitzDaily example for incompressible fluids and the simpleFoam solver. I thought I can model the moving fibre defining a boundary condition on that wall with the fibre velocity.
I noted that with this definition I created a new mass or volume flow into the system. What of course is not what I want.

So my question:

Does someone of you have any idea how I can model this in OpenFoam?

I would be happy about every hint you can give me. Thank you very much in advance!

Hope to help you too in the future

Kind regards

Markus