This is an 2D axis-symmetric mesh on openFOAM created on BlockMesh. Will mesh transition at junction create any issues with solver like interFoam and in general? Will refinement help or not? :
Incompressible 2D flow through an elbow with OpenFOAM ~ FLUID DYNAMICS AND MATHS
Mesh imported into OpenFOAM-Particular of the lobe area | Download Scientific Diagram
OpenFOAM on Twitter: "New #OpenFOAM #CFD snappyHexMesh volume smoothing to reduce mesh non-orthogonality in v3.0+ https://t.co/7GIaJdJzcp https://t.co/WeM5Ajax3M" / Twitter
Meshing support
Open source adaptive mesh refinement
Meshing support
WSS18] Build a link between Wolfram Language and OpenFOAM - Online Technical Discussion Groups—Wolfram Community