Elmer/GiD tutorial in 3D 					ML 16.5.2004

1) Make sure that the folder elmer.gid is copied in \GiD\ProblemTypes.
   Then, "elmer" should be a valid problem type for GiD and visible in
   Data -> Problem type.

2) Invoke GiD and choose File -> New 

3) Create a cylinder: Geometry -> Create -> Object -> Cylinder. Give:

               Center for the base: 0 0 0
               Normal for the base: Positive x
               Radius for the base: 0.1
               Height: 1

4) Right-click the mouse and choose a) Render -> Flat lighting b) Rotate ->
   Trackball. Select  a nice view point and give the command "zoom frame".

5) Choose Data -> Problem type -> elmer

6) Assing boundary conditions to the surfaces by choosing Data -> Condition.
   Select "SurfaceCondition" with Index=1 and assign it to any one of the
   three surfaces. Then assign Index=2 to any one of the two remaining
   surfaces. Finally, assign Index=3 to the last surface. NOTE: Only the
   boundary elements on surfaces with Index>0 will be written in the mesh
   file "mesh.boundary".

7) Choose Data -> Materials and assign Index=1 to the volume of the cylinder.
   NOTE: Only the bulk elements with material Index>0 will be written in the
   mesh file "mesh.elements".

8) Set Utilities -> Preferences -> Meshing -> Mesh always by default: surfaces
   This option is needed to generate the mesh.boundray file.

9) Select Meshing -> Generate. Give size=0.1. As a result, we should get
   216 triangular bondary elements, 289 tetrahedra bulk elements, and 122
   nodes.

10) Save the project: File -> Save as

11) Save the mesh in elmer-format by choosing Calculate -> Calculate. The
    mesh.* files written by GiD can be found from the project-folder.

Any questions? Write a message to: mikko.lyly@csc.fi