Rough SurfaceΒΆ

Learning targets

  • Construct a rough surface as a texture on the interface of two layers

  • Periodified Gaussian rough surfaces

This example constructs a Gaussian rough surface between two homogeneous layers:

_images/ex3d_rough_surface.png

.jcm Input File

  • layout.jcm [ASCII]

     1Layout3D {
 2  UnitOfLength = 1e-9
 3  
 4  MeshOptions {
 5    MaximumSideLength = 100
 6  }
 7  Extrusion {
 8    Objects {
 9      Parallelogram {
10        Name = "ComputationalDomain"
11        DomainId = 1
12        Height = 2000
13        Width = 2000
14        
15        Boundary {
16          Class=Periodic
17        }
18      }
19    }
20    MultiLayer {
21      LayerInterface {
22        BoundaryClass = Transparent
23      }
24      Layer {
25        DomainId = 2
26        Thickness = 200
27      }
28      LayerInterface {
29        Texture {
30          RoughSurface {
31            CorrelationLengths=[50 50]
32            RMSHeight = 50.0
33            RandomSeed = 1
34          }
35          MeshOptions {
36            MaximumSideLength = 50
37          }	
38        }
39      }
40    }
41  }
42}
43Layout3D {
44  UnitOfLength = 1e-9
45  
46  MeshOptions {
47    MaximumSideLength = 200
48  }
49  Extrusion { 
50    Objects {
51      Parallelogram {
52        Name = "ComputationalDomain"
53        DomainId = 1
54        Height = 2000
55        Width = 2000
56        
57        Boundary {
58          Class=Periodic
59        }
60      }
61    }
62    MultiLayer {
63      Layer {
64        DomainId = 7
65        Thickness = 200
66      }
67      
68      LayerInterface {
69        BoundaryClass = Transparent
70      }
71    }
72  }
73}

Note

A texture can be placed within each LayerInterface section. In this example the texture was placed between two stacked layouts. This way we can define the meshing quality on both sides of the texture individually.