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precice / openfoam-adapter

OpenFOAM-preCICE adapter
https://precice.org/adapter-openfoam-overview.html
GNU General Public License v3.0
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Robin-Robin FF coupling: mixed boundary conditions for flow coupling #231

Open MakisH opened 2 years ago

MakisH commented 2 years ago

OpenFOAM provides mixed type boundary conditions, which allow setting both a value and a gradient, essentially enabling Robin-Robin coupling. We already use that in our heat exchanger tutorial, where we read and write sink temperature and heat transfer coefficient.

Supporting such boundary conditions would probably help us improve the accuracy of the coupling (see #93).

MakisH commented 1 year ago

This is not covered by https://github.com/precice/openfoam-adapter/pull/281

Robin-robin coupling is indeed an interesting additional direction, and it would be different than what we are now doing by reading pressure + gradient of velocity or velocity + gradient of pressure.

Keeping open for now, but nobody is working on this at the moment. We would need a clear use case and some investigation to pick it up.

precice-bot commented 10 months ago

This issue has been mentioned on preCICE Forum on Discourse. There might be relevant details there:

https://precice.discourse.group/t/ff-coupling-with-python-1d-in-house-code-for-flow-distribution/1685/4