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[ImmersedBoundary] Immersed Boundary Mesh Problem

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Old   November 20, 2016, 16:05
Default Immersed Boundary Mesh Problem
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Emre
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Hello,

I did cylinderInChannelIcoIbFoam and movingCylinderInChannelIco tutorials succesfully. (https://github.com/wyldckat/Immersed...annelicoIbFoam and https://github.com/Unofficial-Extend...erInChannelIco)

I want to define new cylinders instead of tutorials' cylinders. I created it in ANSYS DesignModeller and made it as surface body, then meshed. At this point I have cylinder.msh

Now I want to change this .msh file to .stl in order to use it in immersed boundary tutorials. I typed fluentMeshToFoam cylinder.msh. I get fatal error.
cannot find a single face in the mesh which uses vertices 3(1 0 2)
From function findFace(const primitiveMesh&, const face&) in file fluentMeshToFoam.L at line 856.

Then I typed fluent3DMeshToFoam cylinder.msh. It worked.

After this I tried this method to create cylinder.stl :
Quote:
Originally Posted by olesen View Post
A "foamToSurface" doesn't seem to exist yet, but you can try the following:
  • foamToStarMesh -surface [-latestTime | -constant]
This should create surfExport.{cel,vrt} files
  • touch surfExport.inp
This creates a dummy file that identifies the grouping of files as proSTAR files.
  • surfaceMeshConvert surfExport.inp surfExport.stl
Convert to STL (or other) surface format.
At the end I open my geometry with paraView but I see nothing. So embarrassing.

Any idea?
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Old   November 21, 2016, 04:47
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If all you need is a cylinder, make it in Paraview, triangulate the geometry (filter) and save data to STL. Apart from that Ansys DM cannot export STL? Really surprises me.
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Old   November 21, 2016, 05:23
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Even if Ansys Design Modeler could export STL, I wouldn't need it. I need a mesh file because I want to set the delS (I mean delta S in immersed boundary and it has to be equal to delta X in blockmesh) and to convert it STL.
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