Hi ,
I have recently started using FreeFEM for my PhD studying, but I have encountered a problem when I am trying to model very thin domains in 2D.
I am trying to define a really thin rectangular shape (length 0.2 mm and width 20 micrometer), but I constantly get the following error:
Exec error : Error points border points to close < diameter*1e-7
I am using the following code:
include “ffmatlib.idp”
int C1=1;
int C2=2;
real tapeWidth=0.012;
real thicknessAgEpoxy=2010^-6;
border C11(t=0., 1.){x=tapeWidtht; y=0;label=C2;}
border C12(t=0., 1.){x=tapeWidth; y=thicknessAgEpoxyt;label=C2;}
border C13(t=1., 0.){x=tapeWidtht; y=thicknessAgEpoxy;label=C2;}
border C14(t=1., 0.){x=0; y=thicknessAgEpoxyt;label=C2;}
int n=10;
mesh Th=buildmesh(C11(15n)+C12(1)+C13(5*n)+C14(1));
plot(Th);
Am I missing some definition? The algorithm works when I define higher width values, so I assume there must be a definition of the minimum clearance that I have to do, but I couldn’t find something in the documentation/forum.
Thank you!
Regards,
Alex