Partition with Ball
Use Partition with Ball () to partition geometric entities of a mesh by creating at least one new geometric entity for the elements enclosed in the specified ball, as seen in Figure 8-88.
Figure 8-88: Using a Partition with Ball operation (left) to define a boundary (right) on which a boundary condition can be applied.
To add a Partition with Ball () node, select one or several entities in the Graphics window, then choose one of the following:
Right-click in the Graphics window to open The Graphics Context Menu. Select Partition with Ball () from the Booleans and Partitions menu.
Click Booleans and Partitions () on The Mesh Toolbar and select Partition with Ball.
Right-click the Mesh node and select Partition with Ball () from the Booleans and Partitions menu.
Enter the properties for the Partition with Ball node using the following sections:
Then use the following sections to specify the geometric entities to partition, the properties of the ball, and the condition for division:
Geometric Entity Selection
Define the geometric entities that you want to partition. You choose the geometric entity level from the Geometric entity level list:
Choose Entire geometry to divide all geometric entities according to the specified ball.
Choose Domain, Boundary, or Edge to specify the domains, boundaries, or edges, respectively, that you want to partition or choose a named selection to refer to a previously defined selection. Use All domains, All boundaries, or All edges to select all entities of the specified dimension.
Ball Center
Specify the center of the ball in the x, y, and z (only in 3D) fields (SI unit: m).
Ball Radius
Specify the radius of the ball in the Radius field (SI unit: m). The default radius is 1.
Condition
Use the Include element if ball contains list to select the condition for which the element is enclosed in the specified ball. Choose All vertices to consider an element to be enclosed in the specified ball if all element vertices are located inside, or choose Some vertex to consider it enclosed if at least one element vertex is located inside the ball.