Creating 3D Pipe Geometry and Mesh in OpenFOAM:
Create a 3D Geometry using blockMeshDict
Create a Multi-block geometry and Mesh
Mesh a 3D geometry
Create arcs in blockMeshDict
Label the boundary patches
Check Mesh domain
Check Skewness
Check Aspect Ratio
Check number of cells
Check cell types
View the 3D geometry and mesh in ParaView