Configure the Master Simulation Project

Configure the master simulation project to optimize the settings applied to the simulation.

You can use the CST Studio Suite master simulation project to adjust settings, such as the mesh type, solver type and accuracy, and platform material. With regard to the solver settings, CST Studio Suite uses the hybrid solver technique to exchange information from the antenna project's frequency domain solver with the platform project's integral solver. You change these settings to balance the solution's accuracy with the simulation's run time. When you run a simulation for a coverage test, CST Studio Suite applies the master simulation project settings to the simulation. If you choose not to configure the master simulation project, CST Studio Suite applies default settings to the simulation.

In this example, you configure the antenna project to use the frequency domain solver, and you configure the platform project to specify a minimum cell size for the mesh. Using the frequency domain solver for the antenna project is ideal for the following reasons:

  • The frequency domain solver accommodates the small details of the VHF blade antenna's geometry.
  • The frequency domain solver considers the very small electrical size of the VHF blade antenna, which is approximately 0.6 wavelengths at 127.5 MHz.

These changes decrease the simulation run time for your coverage tests.

  1. From the Configure Simulation section of the Assistant, click Configure Simulation .
    The 3DEXPERIENCE platform saves your simulation. CST Studio Suite opens, automatically downloads your assembly, initializes the master simulation project, and notifies you when this process is complete.
  2. In CST Studio Suite, change the antenna project's solver type for the front coverage test.
    1. From the Navigation Tree, expand Tasks and select Front Test / HS1 to open the hybrid solver (HS) task.
    2. In the Task Parameter List (HS1), expand Local domains > EXAMPLE-VHF Blade1.
    3. From the Solver options, select the Frequency Domain solver.
    4. Click Save.

      Important: Saving the antenna project with the updated solver type greatly reduces the simulation run time.

  3. Similarly, change the antenna project's solver type for the middle coverage test.
  4. In CST Studio Suite, change the minimum cell size for the front coverage test.
    1. From the Navigation Tree, under Front Test / HS1, double-click EXAMPLE-Aircraft_11 to open the project.
    2. From the Home tab in thetop bar, click Global Properties.
    3. In the Minimum cell section, enter 0.03 as the Absolute value.

      This minimum value avoids the resolution of fine details and reduces the simulation run time.

    4. Click OK.
  5. Similarly, change the minimum cell size for the middle coverage test.
  6. Click Save all.
  7. Save the master simulation project to the 3DEXPERIENCE platform.
    1. Select File > Project > 3DEXPERIENCE > Save 3DEXPERIENCE Model....
    2. In the Save to 3DEXPERIENCE dialog box that appears, clear the Simulation Data option.
    3. Click OK.
      The Configure Simulation section of the Assistant receives a green check mark , indicating that the master simulation project was saved.
  8. Close CST Studio Suite.