Meshing issues for various cross sections
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Hello, I am trying to create a mesh for differently shaped pipe cross sections (inner body). In this process, fluid flows through the pipe (inner body) into an expansion volume. The middle gray body encloses the pipe and forms the transition into the outer expansion volume. I have defined the mesh of the pipe and the transition body using face sizing. The settings are the same for the two different cross sections, so only the cross section of the inner body changes. What could be the reason for the change in the mesh? Why can the mesh be structured like that in the first image, but not in the second one?
Thank you very much in advance!
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