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Acoustics and vibro-acoustics > Simcenter Nastran FEM acoustics > Fan Noise > Create a Fan Noise load and solution

1. Import the CFD pressure data

  1. In the Simulation Navigator, right-click your Simulation file and choose New Solution ProcessModel and Load Pre-processing. Click OK. The Model and Load Pre-processing 1 node appears in the Simulation Navigator.

  2. Right-click Model and Load Pre-processing 1 and choose Add LoadInput File.

  3. In the Input File dialog box, click Browse to browse to the CGNS folder and select the first available CGNS file.After selecting the first available file, all the other CGNS files are automatically selected.If you only want to import one CGNS file, in the Options group, select Only Selected File.

  4. Click Refresh .The Data group displays the entities imported from the CGNS files.

  5. (Optional) To rename the data, right-click Target Storage Name and choose Edit. This name persists in the solution.

  6. Click OK. In the Simulation Navigator, a new item, Input File 1, is listed under the Model and Load Pre-Processing node.

  7. To display the input pressure data on the fan blade(s), right-click Input File 1 and choose Post-Processing Scenario .

  8. In the Scenario Based Data Visualization dialog box, click Contour Plots and choose Create Scenario.

  9. Click Close to close the dialog box.

  10. Choose Home tab→Context group→Return to Model .

Next step
2. Map the CFD fan mesh to transient fan blade elements
  1. Import the CFD pressure data, Simcenter 3D 2021.1 Series

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Source: https://docs.sw.siemens.com/en-US/doc/289054037/PL20200601120302950.advanced/xid1847878 · retrieved 2026-07-17