Tutorial 3: Intersecting Surfaces

This tutorial shows how to make a grid for a simple geometry: The area inside one geometry, bounded by another geometry.

Start by creating two ellipses as shown below.

Suppose we want to create a grid inside the lower ellipse, not including the area inside the upper ellipse.

Create the regular "Wrap" type of topology inside the ellipse, without linking the the top corners, creating only a partial loop.

Assign the upper corners to the upper ellipse as shown.

Assign the outer corners to the lower ellipse, as shown.

The grid density can be adjusted to create a better cell distribution using the "Link Properties" button . Select the link which you want to adjust the density on and press the Link Properties button to adjust its density.

Although density does not automatically propagate to adjacent links within tecplot, density will propagate during grid generation. If conflicting densities are assigned, the most recently defined one will propagate.

Densities will propagate as shown below. Adjusting densities on a link will propagate to the other links of the same color during grid generation. Adjust densities as shown below.

The resulting grid is shown below.