Boundaries

Solid Boundary

For this example we will use two different solid boundaries (Data > Boundaries > Solid), one representing the symmetry surfaces and the other the rest of the walls. In order to do this, we need to create a new boundary. To create the new boundary, press New Boundaries button in the SolidBoundary window, and entering the name SolidBoundary2 (see Figure 38).

Figure 38 New solid boundary creation

In our case the values for the SolidBoundary2 have to be fixed as shown in Figure 38 (convection coefficient of 1000 W/m2ˇēC, with a reference temperature of 20ēC), while the values for the original SolidBoundary, will remain as given by default. The properties of SolidBoundary will be applied to the surfaces shown in Figure 39 (these will act as symmetry surfaces), while SolidBoundary2 properties will be applied to the rest of the surfaces (where the cooling by convection is to be developed).

Figure 39 Surfaces (green) where SolidBoundary properties
have to be assigned