I want to use periodic boundary condition in 3D in my code, but I'm not sure
how to do this.
In example 24, it builds a square with periodic boundary like this:
PeriodicBoundary horz(RealVectorValue(2.0, 0., 0.));
horz.myboundary = 3;
horz.pairedboundary = 1;
dof_map.add_periodic_boundary(horz);
PeriodicBoundary vert(RealVectorValue(0., 2.0, 0.));
vert.myboundary = 0;
vert.pairedboundary = 2;
dof_map.add_periodic_boundary(vert);
If I created a cube with:
MeshTools::Generation::build_cube (mesh, 10, 10, 10, -1., 1., -1., 1.,
-1., 1., HEX8);
How to apply the periodic condition? Because I don't know the boundary ids
of the six opposite faces of the cube.
Does anyone have some advise?
Thanks in advance.
--
Cai Yuanwu 蔡园武
Dept. of Engineering Mechanics,
Dalian University of Technology,
Dalian 116024, China
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