2D mesh BoundaryLayer fails in xz-plane
I recently use gmsh python API to create 2D mesh grids of some airfoils for cfd simulations. The 2D mesh grids were successfully generated in xy-plane with nice BoundaryLayer grids. However, because of some reasons the 2D mesh grids have to be in xz-plane. So I made some changes in my codes, simply exchanging the y-z-coordinates of points and the rest remaining the same. The BoundaryLayer works well in xy-plane but fails in xz-plane. In order to reproduce this issue, I created relative simple cases (*.geo) with only few points in xy- and xz-plane, respectively. As shown in the figures below, BoundaryLayer fails in xz-plane (marked by a red circle). So, is there any tips or short-term solutions to this?