// Gmsh project created on Sat Mar 30 14:49:09 2024
SetFactory("OpenCASCADE");
//+
Circle(1) = {0, 0, 0, 4, 0, Pi/6};
//+
Circle(2) = {0, 0, 0, 14, 0, Pi/6};
//+
Line(3) = {2, 4};
//+
Line(4) = {1, 3};
//+
Curve Loop(1) = {3, -2, -4, 1};
//+
Plane Surface(1) = {1};
//+
Transfinite Curve {3, 4} =3 Using Progression 1.1;
//+
Transfinite Curve {1, 2} = 3 Using Progression 1;
//+
Transfinite Surface {1};
Recombine Surface {1};//+
Physical Curve("sym1", 5) = {3};
//+
Physical Curve("sym2", 6) = {4};
//+
Physical Curve("up", 7) = {1};
//+
Physical Curve("up2", 8) = {2};
//+
Physical Surface("up2", 9) = {1};
