[efirvida]

Hi, to keep it simple, I have this gmsh file script file, which represents a rectangular domain, I want a structured mesh with progression from bottom to top. But when I generate the 2D mesh, the layers collapse in the bottom corners; I don't have any clue.

Point(1) = {0, 0, 0, 1e+22};
Point(2) = {0, 0.5, 0, 1e+22};
Point(3) = {1, 0.5, 0, 1e+22};
Point(4) = {1, 0, 0, 1e+22};
Line(1) = {1, 2};
Line(2) = {2, 3};
Line(3) = {3, 4};
Line(4) = {4, 1};
Line Loop(1) = {1, 2, 3, 4};
Transfinite Line {1,-3} = 20 Using Progression 1.2;
Transfinite Line {2} = 50;
Transfinite Line {4} = 50;
Plane Surface(1) = {1};
Transfinite Surface {1} = {1,2,3,4};
Recombine Surface {1};