mesh.edp

FreeFem++可以生成高质量的有限元网格。可以用于流体力学

    real r0=1;
    real h = 0.0008;
     border a(t=0,r0){x=t;y=0;label=1;};
     border b(t=0,h){x=r0;y=t;label=2;};
     border c(t=0,r0){x=r0-t;y=h;label=3;};
     border d(t=0,h){x=0;y=h-t;label=4;};
     verbosity=100;
     mesh Th = buildmesh (a(9000) + b(5) + c(9000) + d(5));