Hello, I'm working with comsol for my bachelor thesis in CFD and I'm trying to adjust the tangent vectors on the surface of my geometry (a vessel) in the direction of the stream , because Comsol spitting out a very "wild" varieations of tangent vectors (axial). To do so i try to align my tangent vectors with the centerline of my geometry which i created with a interpolation curve. How do I get this alignment?! The basis of my consideration is a small part in a paper i put in in the attachment. There is a description of how to chose the tangent vectors. Probably that helps. I hope there are some thougts you can share.
Tristan