[marshallr]

As part of a simulation I am trying to generate a 2D rectangle in Gmsh with significantly more elements in one direction than the other.

The aim is to use it with Su2. Therefore I want to define which lines are the 'left', 'right', 'upper' and 'lower' to enable my boundary conditions to be applied by the solver.

However there is a syntax error for the lines under '//Boundaries'

Any suggestion as to how i fix this?


Thank you


mesh code:

//+
Point(1) = {-1, 0.1, 0, 1.0};
//+
Point(2) = {1, 0.1, 0, 1.0};
//+
Point(3) = {1, -0.1, 0, 1.0};
//+
Point(4) = {-1, -0.1, 0, 1.0};
//+
Line(1) = {1, 2};
//+
Line(2) = {2, 3};
//+
Line(3) = {3, 4};
//+
Line(4) = {4, 1};
//+
Line Loop(1) = {1, 2, 3, 4};
//+
Plane Surface(1) = {1};
//+
Transfinite Line {3, 1} = 2000 Using Progression 1;
//+
Transfinite Line {4, 2} = 5 Using Progression 1;
//+
Transfinite Surface {1};
//+
Recombine Surface {1};


//Boundaries
Physical Line (“upper_wall”) = Line(1) ;
Physical Line (“lower_wall”) = Line(3) ;
Physical Line (“left”) = Line(4) ;
Physical Line (“right”) = Line(2) ;


Physical Surface (“tube”) (1);

[tomm450]

This should work

//Boundaries
Physical Line ("upper_wall") = {1};
Physical Line ("lower_wall") = {3};
Physical Line ("left") = {4};
Physical Line ("right") = {2};

Physical Surface("tube") = {1};

I don't know if it's the web site font but Gmsh doesn't recognize the quotation marks of the geo file you post