CFD  Test
Commands
ComputerAided Design
Software
(CAD System)
Computational
Fluid Dynamics 
FM  General Tests Command
(A) This command makes a multibox domain.
1. Key in the domain location
coordinate (ex. 2,2,2 and Enter).
2. Key in 2,2,2 or any three integers (length, width, height) and Enter
to make a multibox.
3. Repeat the keyin of the three values (a few times).
4. Then hit End key to finish the domain creation.
5. Hit Spacebar to make a "structured list".
6. Now, we can SLICE the domain by Keying in 3 integers, separated by
comma and then Enter. (ex. 1, 0, 5)
 1st number is IJK cut (1 or 2 or 3)
 2nd number is the cell number (0, 1, 2, ...)
 3rd number is the number of cuts, say 5.
7. Repeat the above step 6 to slice further...
8. Then hit Spacebar to mesh.
9. Hit Tabkey to move mesh plane.
10. Hit Spacebar to toggle the mesh move direction I J K.
11. Now, we can go to Slice Command and/or Mesh Command
(B) This command also allows a
testing of a preset element insertion into a onecell domain.
0. Hit Tab key once, first, to
get into the insertion scenario.
1. Hit Spacebar  a domain
appears.
2. Hit Spacebar  an element to be inserted appears.
3. Hit Spacebar  decomposition of the "epicenter" cells commences...
4. Hit Spacebar several times  the epicenter decomposition improved.
5. Hit Spacebar  decomposition of the entire domain starts...
6. Hit Spacebar several times  the entire domain decomposition finishes.
7. Hit Spacebar  Meshing completes, showing IJK plane meshes.
8. Hit Tab key repeatedly  Mesh plane moves...
9. Hit Spacebar  Toggles through I, J, K planes for mesh movement by
Spacebar.
10. Hit Spacebar repeatedly  for mesh movement for a different direction.
11.  Can go to Mesh Command now and key in the number of grids per cell.
12. Hit Tab key repeatedly to move mesh plane.
(C) This command also tests an element insertion into a mulicell domain.
1. Hit Tab key twice, first 
and then repeat the same process as above.
(D) Tests an element insertion into a multicell domain, but the element
extends over multiple cells..
1. Hit Tab key three times 
and then repeat the same process as above.
FM  CFD Domain Creation
This command creates a CFD domain, to be used as a starting domain for
other operations.
1. Click
Tab key once (for a single cell domain) or twice (for a multicell
domain).
2. Then, clcik Spacebar once. Now the domain is structured.
3. You can go to Slice or Mesh...
FM  Make a Structured List
This command makes the domain "structured". Many commands (Insert,
Slice, Mesh) assume that the domain
is already structured before operating on it. Also, these commands
returns the domain structured after the operation is done. So this
command is only needed if a domain is constructed manually by points and
edges......
1. Hit Spacebar to make the
domain structured.
FM  Slice Command
This command allows a slicing of the
domain. (The domain must have been structured prior to slicing). After
each slicing operation, the domain is automatically structured.
1. Slice the domain by keying
in 3 integers, separated by comma and then Enter. (ex. 1, 0, 5)
 1st number is IJK cut (1=i or 2=j or 3=k)
 2nd number is the cell number (0, 1, 2, ...)  must be 0 if only one
cell.
 3rd number is the number of cuts, say 5.
2. You can apply the above step repeatedly.
3. Now, you can go to Mesh Command.
FM  Insert Element Command
This command tests an element
insertion.
1. xxxx
FM  Mesh Generation Command
This command generates mesh (Domain
must have been structured before meshing).
1. Key in the number of grids
per cell, say, 5, and Enter.
2. Hit Tab key repeatedly to move the current mesh plane...
3. Hit Spacebar  Toggles through I, J, K planes for mesh movement by
Tabkey.
4. You can key in a new grid number anytime.
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