COMSOL 6.4 - Creating a Surrounding Domain

Creating a Surrounding Domain

To create a domain that surrounds the enclosure add a sphere to the geometry and set it up as a bounding ball for the geometry.

1

In the Geometry toolbar, click

2

In the Settings window for Sphere, locate the Definition section, and from the Defined by list, choose Bounding ball (approximate).

3

Select the enclosure object (cap1) in the Graphics window.

4

In the Margin text field, type 150[mm].

5

Build Selected to create the sphere.

6

Click first the

Zoom Extents button, followed by the

Transparency button in the Graphics toolbar.

The objects for the sphere and the enclosure are united by the Form Union (fin) node, which is built automatically when you leave the geometry branch of the model tree. Form Union results in three domains: the enclosure, and the volumes on the inside and outside of the enclosure.