lc=0.05;
lc2=lc/100;
thickness=5;

Point(1) = {0, 0, 0, lc2};
Point(2) = {1, 0, 0, lc};
Point(3) = {1, 2.2, 0, lc};
Point(4) = {thickness*1e-3, 2.2, 0, lc2};

Point(5) = {0, 1.8, 0, lc2};
Point(6) = {thickness*1e-3, 1.8, 0, lc2};

Line(1) = {2, 1};
Line(2) = {1, 5};
Line(3) = {5, 6};
Line(4) = {6, 4};
Line(5) = {4, 3};
Line(6) = {3, 2};

Rotate {{0,0,1}, {0,1.8,0}, Pi/4} { Point{6}; }

Curve Loop(1) = {2, 3, 4, 5, 6, 1};
Plane Surface(1) = {1};

Extrude {0, 0, 0.22} {
  Surface{1}; Layers{1}; Recombine;
}

Physical Surface("jetOutlet") = {21};
Physical Surface("adiabaticWall") = {25, 17};
Physical Surface("open") = {29, 33, 37};
Physical Surface("FrontBack") = {38, 1};
Physical Volume("Air") = {1};
