Power Inverter with Conjugate Heat Transfer: Exercise 4—Assigning Boundary Conditions
Specifying Inlet Boundary Conditions
1. Under Boundary Conditions, General Boundaries select BC_00001.
2. In the Model tab select the following values for the options listed:
◦ Flow—Specified Pressure Inlet
◦ Pressure—101325 Pa
3. In the Model tab for Streamline set Release Particle to Yes
Specifying Outlet Boundary Conditions
1. Under Boundary Conditions select BC_00002.
2. In the Model tab select the following values for the options listed:
◦ Flow—Specified Volumetric Flux
◦ Flow Direction—Outflow
◦ Value—0.001 m3/s
3. To add the heat source, under Domains, do the following:
a. Select TRANSFORMER. In the Model tab, for Heat select the following values:
▪ Create a New Source—Total Heat Source
▪ Value—3 W
b. Select CHIP_THERMAL. In the Model tab, for Heat select the following values:
▪ Create a New Source—Total Heat Source
▪ Value—2 W
c. Select TRANSISTOR1, TRANSISTOR2, TRANSISTOR3, and TRANSISTOR4. In the Model tab, for Heat select the following values :
▪ Create a New Source—Total Heat Source
▪ Value—1 W
Specifying Volume Conditions
To set the fluid, click 
Materials. The Material Selection dialog box opens. The fluid properties are set automatically when you select a new fluid.
Materials. The Material Selection dialog box opens. The fluid properties are set automatically when you select a new fluid.