Hey everybody,
can someone explain to me, how the fluid boundary "baffle" works and how it is correctly applied in FreeCAD/CfdOF.
What i would like to do is the following simple example:
I modelled a straight pipe (3000 mm long, 150 mm diameter) in which a perforated plate would be installed (currently through a second .stp File in the middle of the pipe). Since i don't want to mesh every whole of the plate, i tried adding a fixed value for pressure loss (selected the face of the second .stp File), but OF quits with errors. Is there any example on how to implement a pressure loss?
Thank you for any help!
Baffle / Pressure loss
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Re: Baffle / Pressure loss
Well, f*ck me! On the tutorial page (opensim) is pretty much exactly the kind of example i was looking for the last 3 days.
For anyone who is looking for this particular problem in the future, here is the link.
https://github.com/opensimsa/opensim/tr ... PorousFlow
Case closed
For anyone who is looking for this particular problem in the future, here is the link.
https://github.com/opensimsa/opensim/tr ... PorousFlow
Case closed
Re: Baffle / Pressure loss
Hey guys,
i got to revise my last comment. The example I mentioned works perfect for meshing with gmsh, but with cfmesh i just can't get it to run.
Could someone help me? Attached you will find the file.
i got to revise my last comment. The example I mentioned works perfect for meshing with gmsh, but with cfmesh i just can't get it to run.
Could someone help me? Attached you will find the file.
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Re: Baffle / Pressure loss
cfMesh doesn't support baffles and internal regions, so snappyHexMesh must be used. Please note there are separate tutorials for snappy and gmsh - the geometry has to be set up a bit differently for the two.
Please provide all the information requested in this post before reporting problems with CfdOF.
Re: Baffle / Pressure loss
Oh.. okay Too bad, i really like the meshes cfmesh generates. Even in bigger models with thousands of faces the mesh quality is very good for a free mesher. Will they be adding such a feature?oliveroxtoby wrote: ↑Fri Oct 05, 2018 3:10 pm cfMesh doesn't support baffles and internal regions, so snappyHexMesh must be used. Please note there are separate tutorials for snappy and gmsh - the geometry has to be set up a bit differently for the two.