Dear All,
I have a set of 3D datapoints that looks similar to sphere. I converted this to stl format by using "MeshLab" software. I think the mesh is good to go with triangulated faces on the surface.
Now, I want this domain for internal heat flow transfer. For this purpose, I want to construct 3D mesh from BlockMesh and SnappyHexMesh. But when I gave the domain for blockmesh and executed snappyHexmesh, the blockmesh is not craving in the shape of the stl file, instead the block is also produced.
1. I have given the "locationInMesh" inside the stl file in snappyHexMesh.
2. The domain of the blockmesh is exactly the boundaries of the stl file. (xmax - 210, ymax = 165, zmax = 86.4).
3. I have attached the images and also the case file for reference.
4. All I want is only the stl file with 3D mesh for simulation.
I have attached two images for reference. One obtained from the meshlab and other from OpenFoam which is obtained after moving meshlab mesh to SnappyHexMesh. I have also attached the case for reference.
Case Attachment: https://drive.google.com/file/d/1MaT...ew?usp=sharing
Any leads will be appreciated.
Regards,
Sunag R A.
Minh Doan Thank you for your suggestion. I worked again with Meshlab to close the stl mesh and obtained internal mesh in OpenFoam. It cleared out well.
But in OpenFoam, the "surfaceCheck" showed surface is not closed. Also, I am trying to create a surface reconstruction using Python for automation.
Please add any suggestions for above works.
Regards,
Sunag R A.
Sunag Rattehalli Amaranath I am glad it worked for you. There is a tool in openfoam that you can try called ZipUpMesh to help close the surfaces. Details can be found here:
https://openfoamwiki.net/index.php/ZipUpMesh
I also believe that you can close the mesh tight with Meshlab (just don't remember the details at the top of my head now). Anyway, if ZipUpMesh works for you then it should be easy to automate the process.
Cheers.
Minh Doan Thanks for the suggestion. I will definitely try ZipUpMesh and update the same. With respect to Meshlab, I have already worked on it, and have attached the image in the question of this topic.
Currently, I am trying to work with Open3D python library, it does work but not satisfactory. It has a lot of open faces which needs to be closed. Looking for particular libraries to close the hole using python. For this, I understood the logic of below link and tried to install the library, but having error in installation. Have asked for support.
hole_fixer link: https://github.com/Erkaman/hole_fixer
Also, will work with ZipUpMesh as suggested.
Regards,
Sunag R A.
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