Coreform Cubit Version: 2023.11
Platform: Windows
Issue
Hello！
The helical cruciform fuel rod file I have currently generated is as shown in the ZIP file below. I have read some mesh generation cases mentioned earlier in this community and referred to some of their methods. The mesh of this file is currently helical. According to the requirements of my case, I need to add a rectangular cuboid outer frame to this file, and finally make the water domain into a rectangular cuboid. However, after the current production is completed, a mesh with extremely poor quality has appeared.
Next, the tasks I plan to perform are as shown in the figure below.
The mesh on the current cylindrical side surface is as shown in the figure below.
Then how can I generate a mesh for this rectangular cuboid water domain without 180-degree twist? After using OpenFOAM’s checkMesh, it prompts that there is 180-degree mesh twist. I consider a twist angle below 70 degrees to be reasonable, and a twist angle of 180 degrees will affect the CFD results.
By the way, I have already tried the smooth function, and it doesn’t seem to work in my case.
cubitQuestion.zip (9.7 MB)
I believe there must be someone in the community who has a good solution to this problem, but I don’t have any solutions at the moment.
Best regards,
KeevRG