PID Controller Exercise 5— Assigning Boundary Conditions
Cold Fluid Inlet
1. Under Boundary Conditions, General Boundaries, select pipe_cold_inlet.
2. In the Model tab, select the following values for the options listed:
◦ Flow—Specified Volumetric Flux
◦ Value—1 L/min
3. For Heat, select the following values for the options listed:
◦ Heat—Specified Temperature
◦ Temperature—20 C
Hot Fluid Inlet
1. Under Boundary Conditions, General Boundaries, select pipe_hot_inlet.
2. In the Model tab, select the following values for the options listed:
◦ Flow—Specified Volumetric Flux
◦ Value—controller.output L/min
◦ Output—User Select
▪ Volumetric Flow Rate—Yes
3. For Heat, select the following values for the options listed:
◦ Heat—Specified Temperature
◦ Temperature—50 C
Pipe Outlet
1. Under Boundary Conditions, General Boundaries, select pipe_outlet.
2. In the Model tab, select the following values for the options listed:
◦ Flow—Specified Pressure Outlet
Defining Fluid Properties
1. Click 
Materials in the Flow Analysis ribbon. The Material Selection dialog box opens.
Materials in the Flow Analysis ribbon. The Material Selection dialog box opens.2. For fluid domain PIPE_Body_1, select Water. Click OK to close the Material Selection dialog box.