Thank you Kremella,nI do have a follow-up question if that is ok.nAs of right now I'm still only using the student version of Ansys, so I'm limited by the maximum amount of nodes Fluent accepts. It looks like the smaller elements have better orthogonal quality. Note that capture curvature is enabled. Is there a way I can increase the quality without decreasing the element size (and thus staying within limit of the student version)?nnn all throughout the model only the topmost layer of the solid pipe seems to have terrible quality, however the rest of the pipe and internal fluid seems fine.n Is the only way of fixing my mesh quality to decrease the element size?n