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[ICEM] Define rotational periodicity on unstructured mesh |
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April 9, 2024, 13:16 |
Define rotational periodicity on unstructured mesh
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Join Date: Oct 2022
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Hello everyone,
I know, this topic is basic and should be answered already, however, unfortunately I didn't find the answer in old threads or through youtube videos. I am using Icem and Ansys on my universities cluster, although, the program usage is provided, I don't have access to the help function of the programs or any files in the installation folders. Google got me a CFD User's guide and programmer's guide, both didn't hold the answer I was looking for. My question: I have a cascade section of a turbine, which I am about to mesh with rotational periodicity. Because of the geometries complexity I am not able to use blocking, so I am using unstrucutred meshing. Now my work chain is the following: under Mesh, Global Mesh Parameters, I am defining the Global Mesh Size, Shell Meshing Parameters, Volume Meshing Parameters and the Set up Periodicity. Here, I set the rotational axis (x) and the base, which is the point on that axis where the geometry begins and the angle of the cascade section. Each Menu I send off with a click on apply, which gives me a message in the message window "periodicity has been defined" etc. Now, I proceed with choosing the compute option under the Meshing menu. I am choosing Octree Mesh (I read online, Delauny isn't capable of periodicity). So I skip the surface meshing part and go straight to volume meshing. I click compute and the mesh is constructed. Now, when I check that mesh, under the edit mesh menu, and I choose to check for periodicity problems, it writes out: "There is no periodicity defined in the mesh" What am I missing or skipping? |
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