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Topics related to geometry, meshing, and CAD.

Cyclic Symmetry creates meshing problem

    • annelisbreed
      Subscriber

      Hello!


      I am having problems with meshing my Pelton wheel slice after applying a cyclic symmetry condition to it. Without the cyclic symmetry, it meshes fine. I have attached here photos using the automatic meshing method and the related error codes, but I have also tried with other meshing methods and none have worked. The problematic faces that cause an issue with the geometry (photo attached) are the faces that connect the High and Low faces, so I am wondering if there is something I can do to adjust this. 


      What might I need to change either on the model or mesh settings?


       

    • annelisbreed
      Subscriber

       I am not able to upload a .wbpz file as I get this error message from the website: "The page was not displayed because the request entity is too large." Here it is as a zipped file on google drive: https://drive.google.com/file/d/1a6PxgpWPpRRYTqB_idYiyy03rZFqkj7i/view?usp=sharing 

    • Rob
      Forum Moderator

      Staff are not permitted to open/download attachments so please repost in with the text.  If you're using Fluent can you use a non-conformal periodic boundary? As long as the mesh is near enough the same you'll not see a difference in the result but it's much easier to do. 

    • annelisbreed
      Subscriber

       A friend was able to look at it with fresh eyes and solved this issue. I had my cylindrical coordinate system set up with wrong principle axis. Thank you!

    • Rob
      Forum Moderator

      You're welcome. It always helps if you're pointing things in the right direction! 

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