Hi,
I have a cuboid (x,y,z) domain for which i have created tetrahedral,
structured mesh. Now, I want to apply periodic boundary conditions in
x, and y direction and in order to do that I need the mesh to be
identical for the x=0 and x=xmax surfaces, as well as for the y=0 and
y=ymax surfaces. It is not sufficient for only the nodes to match but I
also want the edges to match!
I have tried to use the "Periodic Surface" command without success. I
have seen several posts on using the "Periodic Surface" commands without
finding a solution for my problem.
Could anyone help me?
My geofile looks like this:
cl=1.0;
//cuboid which is 8000,8000,1000 big
Point(1) = {0,0,0,cl};
Extrude {8000,0,0} {
Point{1}; Layers{10};
}
Extrude {0,8000,0} {
Line{1}; Layers{10};
}
Extrude {0,0,1000} {
Surface{5}; Layers{5};
}
boundMaster[] = Boundary{26};
boundSlave[] = Boundary{-8}; //tried plus and minus sign here..
boundMaster2[] = Boundary{22};
boundSlave2[] = Boundary{-14}; //tried plus and minus sign here..
Periodic Surface 18 {boundSlave[]} = 26 {boundMaster[]};
Periodic Surface 14 {boundSlave2[]} = 22 {boundMaster2[]};
Physical Surface(28) = {14}; //y=y0
Physical Surface(29) = {18}; //x=xmax
Physical Surface(30) = {22}; //y=ymax
Physical Surface(31) = {26}; //x=x0
Physical Surface(32) = {5}; //top
Physical Surface(33) = {27}; //bottom
Physical Volume(34) = {1};
Best,
Josefin
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