Electric Field Exercise 5— Assigning Boundary Conditions
In the Functions Panel, click 
to change the grouping to domain based.
to change the grouping to domain based.Specifying Inlet Boundary Conditions
1. In the Flow Analysis tree, expand the following domain and select the corresponding solid side boundaries as shown in the table below from the General Boundaries list:
Domain Name | Solid side boundary |
|---|---|
BUSBAR_1_Body_1 | CURRENT_INLET_1_i1 |
BUSBAR_2_Body_1 | CURRENT_INLET_2_i1 |
BUSBAR_3_Body_1 | CURRENT_INLET_3_i1 |
2. In the Model tab, select the following values for the options listed:
◦ Heat—Specified Temperature
◦ Temperature—90 C
3. In the Model tab for Electric Field, select the following values for the options listed:
◦ Electric Field—Specified Total Current
◦ Heat Direction—Inflow
◦ Value—250 Ampere
Specifying Outlet Boundary Conditions
1. Similarly, identify and select the following solid side boundaries from the General Boundaries list of their corresponding domain as shown in the table below:
Domain Name | Solid side boundary |
|---|---|
COPPER_TERMINAL_1_Body_1 | CURRENT_OUTLET_1_i1 |
COPPER_TERMINAL_2_Body_1 | CURRENT_OUTLET_2_i1 |
COPPER_TERMINAL_3_Body_1 | CURRENT_OUTLET_3_i1 |
2. In the Model tab, select the following values for the options listed:
◦ Heat—Specified Temperature
◦ Temperature—160 C
3. In the Model tab for Electric Field, select the following values for the options listed:
◦ Electric Field—Specified Voltage
◦ Value—0 Voltage
Specifying Air Domain Outlet Conditions
1. Select Common under Physics in the Flow Analysis Tree.
2. Select 
Expression Editor in Operations tab. The Expression Editor dialog box appears.
Expression Editor in Operations tab. The Expression Editor dialog box appears.3. Enter the following under Global Expressions: P_b = -1.184 * 9.81 * z
4. Click OK to close the Expression Editor dialog box.
5. Expand the General Boundaries under WHOLE MESH domain and select outside_dir1_max, outside_dir1_min, outside_dir2_max, outside_dir2_min, outside_dir3_max, and outside_dir3_min.
6. In the Model tab under Flow, change the boundary condition to Specified Pressure Outlet and enter the Pressure value as P_b Pa.
7. Under Heat in the Model tab, select the following values for the options listed:
◦ Back Flow Option — User Specified
◦ Temperature — 25 C