PinholeΒΆ

Learning targets

  • Transparent boundary conditions in 3D

  • Layered exterior domain

This example constructs a nano-scale circular hole in a thin layer (e.g. metal) on top of a substrate.

_images/ex3d_pinhole_mesh.png

.jcm Input File

  • layout.jcm [ASCII]

     1Layout3D {
 2  UnitOfLength = 1e-09
 3  
 4  MeshOptions {
 5    MaximumSideLength = 50
 6  }
 7  BoundaryConditions {
 8    Boundary {
 9      Direction = All
10      Class = Transparent 
11     
12    }
13  }
14  Extrusion {
15    Objects {
16      
17      Polygon { 
18        Name = "ComputationalDomain/Background" 
19        DomainId = 1
20        Priority = -1 
21        Points = [-200 -200, 200 -200, 200 200, -200 200]         
22      } 
23      
24      Circle {
25        Name = "Circle" 
26        DomainId = 2
27        Radius = 100
28        RefineAll = 2
29      }
30    }
31    
32    MultiLayer {
33      MeshOptions {
34        MaximumSideLengthZ = 50
35      }    
36      Layer {
37        Thickness = 100
38        DomainId = 1
39      }
40      Layer {
41        Thickness = 20
42        DomainIdMapping = [1 2 
43                           2 3]
44      }
45      LayerInterface {
46        GeometryValues = [
47        Circle/Radius = 80
48        ]
49        GlobalZ = 10
50      }
51      Layer {
52        Thickness = 100
53        DomainIdMapping = [1 3]
54      }
55    }  
56  }
57}