Before starting with the geometrical models, it is recommended to work with the Units that fit the most to the dimensions of the geometry, as some parameters are automatically set-up. The following functions are especially sensitive to the working Units:
In this example, the default Units (Meters )is valid.
The circular cavity considered in this example is composed of a cylinder and a circle. First, the cylinder of radius = 0.35m is built. It is available within the Geometry – Solid – Cylinder menu, Figure 1, or by using the cylinder -c command. As shown in Figure 3, the center of the cylinder is (0.0, 0.0, 0.0) and its radius is 0.35m. The cylinder has been rotated 90º and the surfaces at x = 1.9 have been deleted. Then a ring of radius 0.35m and 1.0m, minor and major respectively, has been created. It is available within the Geometry – Surface – Rings - Ring menu, Figure 2, or by using the ring command. The ring has also been rotated 90º and move to x = 1.9.
Figure 1: Solid menu.
Figure 2: Surface menu.
Figure 3: Circular cavity.
Revise the normal vectors of the geometry by clicking on the Normals icon. The normal vectors must be as shown in Figure 4.
Figure 4: Normal vectors verification.