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-   -   velocity BC to provide flow rate relative to dynamic mesh motion (https://www.cfd-online.com/Forums/openfoam-solving/166700-velocity-bc-provide-flow-rate-relative-dynamic-mesh-motion.html)

oschi February 15, 2016 12:15

velocity BC to provide flow rate relative to dynamic mesh motion
 
Hello dynamic mesh experts,
I am looking for a boundary condition for the U field of the rhoPimpleDyMFoam solver.
This bc should fix the mass flow rate that is passing the moving boundary patches of an elastic body.

The deformation of the elastic body is calculated separately. So, you can think of a sponge with known dynamic surface deformation, which gets a compressible fluid pumped in or out at a given rate at each surface location.

Does such a bc exist? Or is it possible to specify a flag for the flowInletVelocity such that it operates on fluxes relative to the mesh motion instead of absolute fluxes?

Greetings
Olaf

YUGU May 21, 2019 05:02

I also have this problem, did u find a solution?


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