[ecetinkaya]

Hello, I created a 2D geometry through blender, but when I import it as a stl file, the file cannot be printed because it is not 3D. Is there a way to throw a 2D sketch to openfoam? I don't want to make it 3D because then the flow area is changed and my geometry is a putnam nozzle. For example, I found an excel file on the internet on how to adapt the 2d airfoil to the blockmesh, but my geometry is a nozzle. I would be very grateful if you could give me an idea on how to do it. Thanks.

[dlahaye]

OpenFoam has no concept on 2D simulations (as points in the mesh always have an x, y and z coordinate).

Extrusion from 2D to 3D in such a way that the flow is unchanged is thus required.

The are at least two possibilities:

1/ ask the mesher to mesh with one (single) cell in the extrusion direction. I imagine (though I never used) snappyHexMesh to be able to do so. See also https://snappyhexmesh-gui.readthedoc...appy_gui.html#

2/ generate a 2D mesh and extrude by hand using the OpenFoam extrudeMesh utility https://www.openfoam.com/documentati...trudeMesh.html