Sample Problem: Time-Dependent Z-Pinch Hohlraum

Setting Up the Grid: Top / Bottom Plates and Outer Disk

To set up the top and bottom plates of the hohlraum:

• Select Target | Add Object (or push the Add Object tool button).
• Select "Disk" for the target component type.
• Set the object name to "Top_Plate".
• In the Position tab of the Object Parameters Dialog:
• For the Reference Coordinate System, use "Target Chamber".
• Set the object position to: r = (0, 0, 0.5).
• Use the default orientation angles (all angles zero).
• In the Size/Gridding tab of the Object Parameters Dialog:
  • Set the outer radius to 1.4 cm.
  • Set the inner radius to 0.0 cm.
  • Set surface normals down.
  • Use 5 grid points in the radial direction.
  • Set the number of azimuthal grid points to 12 (30 degrees per node).
• Select "OK".
• The plates are added in the graphics window.

Repeat the above steps for the "Bottom_Plate", with the following differences:

• In the Position tab of the Object Parameters Dialog:
  • Set the object position to: r = (0, 0, -0.5).
• In the Size/Gridding tab of the Object Parameters Dialog:
  • Set surface normals up.
  • Set the outer radius to 1.0 cm (this leaves a 0.4 cm gap).

For the outer disk, repeat the steps for the "Bottom_Plate", with the following differences:

• In the Size/Gridding tab of the Object Parameters Dialog:
  • Set surface normals up.
  • Set the inner radius to 1.4 cm.
  • Set the outer radius to 7.0 cm.
  • Set the number of azimuthal grid points to 36(10 degrees per node).