Geometry 1
Now that we have defined our thermodynamic system and used that to generate a material, it is time to build the geometry for the axially symmetric engine coolant test apparatus (see Figure 5).
Pipe
1
In the Model Builder window, expand the Component 1 (comp1) > Geometry 1 node, right-click Geometry 1 and choose Rectangle. As an option, you can also click  Rectangle in the Geometry ribbon tab.
2
In the Settings window for Rectangle, locate the Size and Shape section.
3
In the Width text field, type r_p (parameter name for pipe radius).
4
In the Height text field, type l_p (parameter name for pipe length).
Both r_p and l_p are defined in the Parameters node, see section Global Definitions.
5
Click  Build Selected.
Chamber
1
In the Geometry toolbar, click  Rectangle.
2
In the Settings window for Rectangle, locate the Size and Shape section.
3
In the Width text field, type r_c (parameter name for chamber radius).
4
In the Height text field, type l_c (parameter name for chamber length).
5
Locate the Position section. In the z text field, type zpos_c (chamber position along the pipe).
6
Click  Build Selected.
Solid Part 1
1
In the Geometry toolbar, click  Rectangle.
2
In the Settings window for Rectangle, locate the Size and Shape section.
3
In the Width text field, type r_s1.
4
In the Height text field, type l_s1.
5
Locate the Position section. In the z text field, type zpos_s.
6
Click  Build Selected.
Solid Part 2
1
In the Geometry toolbar, click  Rectangle.
2
In the Settings window for Rectangle, locate the Size and Shape section.
3
In the Width text field, type r_s2.
4
In the Height text field, type l_s2.
5
Locate the Position section. In the z text field, type zpos_s.
6
Click  Build Selected.
Unite the Solid Parts
1
In the Geometry toolbar, click  Booleans and Partitions and choose  Union.
2
In the Settings window for Union, locate the Union section and select the objects r3 and r4 only. Do so by clicking the Solid part 1 and Solid part 2 in the Graphics window.
3
Clear the Keep interior boundaries checkbox.
4
Click  Build Selected.
Now perform the corresponding actions to unite the pipe with the chamber.
Unite the Pipe and the Chamber
1
In the Geometry toolbar, click  Booleans and Partitions and choose  Union.
2
Select the objects r1 (pipe) and r2 (chamber) in the Graphics window.
3
In the Settings window for Union, locate the Union section and clear the Keep interior boundaries checkbox.
4
Click  Build Selected.
Continue by adding round corners to the geometry.
Fillet
1
In the Geometry toolbar, click  Fillet.
2
On the object uni1 (Solid parts), select Point 5 only. Select the point by clicking in the Graphics window and checking the point number in the Points section, Vertices to fillet, found in the Fillet Settings window.
3
On the object uni2 (pipe and chamber), select Points 6, 7, 9, and 10 only.
4
In the Settings window for Fillet, locate the Radius section.
5
In the Radius text field, type 0.3[cm].
6
Click  Build All Objects.
The Geometry node in the Model Builder window should now look like this: