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Merge meshes from two cylinders with different diameters |
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February 1, 2023, 10:48 |
Merge meshes from two cylinders with different diameters
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AdrienP
Join Date: Jan 2023
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I would like to study the flow of gas in a cylindrical capillary followed by a larger cylindrical volume. I am using salome-platform to create the geometry and the mesh. I would like to know what is the best strategy to have such mesh.
My initial idea was to create a mesh for both cylinders and then to merge the meshes. I would simply generate two cylidners, select some mesh properties for the volumes and surfaces (inlet and outlet). Then I could export in .unv to OpenFOAM. This idea comes from the fact I already tested an hexahedral mesh for the first capillary geometry and I would like to complete this geometry. The capillary is built as a divided cylinder that I mesh with 3D extrustion, quadrangle mapping for 2D and wire discretisation for 1D (see image 1). The inlet and outlet also have 2D and 1D parameters set to have a satisfying CFD simulation. As a matter of fact, I already tried this, found something looking satisfying, with a fine mesh around the capillary (see image 2). Both meshes connect well and so, but my problem is that doing so I have 1000 pyramids, and unv format do not support pyramids. So maybe there is an alternative, I could do things differently. Last edited by Aldehyde; February 1, 2023 at 10:49. Reason: Images too small |
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mesh, openfoam, salome meca |
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