Turbulent Flow in Diffuser: Exercise 1—Setting up the Model
Extracting the Fluid Domain

  1. Click HomeSelect Working Directory and navigate to the folder with the downloaded parts. Click OK.

  2. Click File Open .

  3. From the File Open dialog box, browse to the diffuser folder and select diffuser.asm. Click Open.

  4. Click in the Graphics toolbar to display the style elements. Select Shading, or Shading with Edges.

  5. Click the Applications tab.

  6. Click Flow Analysis. The Flow Analysis tab opens.

  7. Click New Project. If the Residual plot opens, close it.

  8. Click Select Simulation Domains. The Domain Model Selection box opens.

  9. In the Domain Model Selection box, select Add fluid domain.

  10. In the Model Tree select DIFFUSER.PRT.

  11. Middle-click to confirm. The fluid domain appears in the Domain Model Selection dialog box under Fluid Components.

  12. Click OK. The fluid domain appears in the Flow Analysis Tree, as DIFFUSER under Domains.

Adding Boundary Conditions

  1. Under Domains, right-click and select DIFFUSER.

  2. In the graphics window, select the inner surface highlighted in red below.

  3. Click OK. Under General Boundaries, a new entity BC_1 is added.

  4. Under Domains, right-click and select DIFFUSER.

  5. In the graphics window, select the outer surface highlighted in blue below.

  6. Click OK. Under General Boundaries, a new entity BC_2 is added.

  7. Right-click and rename the following boundary conditions:

    • BC_1 as inlet

    • BC_2 as outlet

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