Defining Boundary Conditions

In the heat transfer analysis step, the convection conditions and fixed temperature at the inlet become active. Specify the convection properties as interactions, since the manifold transfers heat to the surroundings. Specify the temperature condition at the inlet as a boundary condition.

  1. Double-click the Interactions container in the Model Tree.
  2. In the Create Interaction dialog, set the following properties:
    Property Setting
    Name SURFFILM
    Step Step-1
    Types for Selected Step Surface film condition
  3. Click Continue...
  4. In the Region Selection dialog, select EXTERIOR and click Continue...
    (If the Region Selection dialog does not appear automatically, click Surfaces... at the bottom right of the Viewport).
  5. In the Edit Interaction dialog, set the following properties:
    Property Setting
    Film coefficient 6.667
    Sink temperature 300
  6. Click OK.
  7. Repeat the steps above, this time using the following settings:
    Property Setting
    Name SURFFILM-2
    Step Step-1 (default)
    Type Surface film condition (default)
    Region FLANGES
    Film coefficient 333.3
    Sink temperature 500
Specify the inlet temperature boundary condition next:
  1. Double-click the BCs container in the Model Tree.
  2. In the Create Boundary Condition dialog, set the following properties:
    Property Setting
    Name Temp-BC
    Step Step-1 (default)
    Types for Selected Steps Temperature (default)
  3. Click Continue...
  4. In the Region Selection dialog, select INLET and click Continue...
  5. In the Edit Boundary Condition dialog, set Magnitude to 500 and click OK.