Adjusting the parameters of Moldflow Rotational Diffusion (MRD) Model

The parameters of the Moldflow Rotational Diffusion Model (MRD) can be adjusted as required.

The MRD model is the default fiber orientation model for 3D analyses. To adjust the parameters associated with this model :

1. Open the Study Tasks pane.
2. Right-click the material and click Edit.

   A window that allows you to edit the thermoplastic material appears.

3. Select the Filler/Fiber tab.
4. In the Fiber orientation calculation (3D) by section, click Edit settings associated with the Moldflow Rotational Diffusion model menu option.

   The Fiber Orientation Model Parameters window appears. Select Automatic or Specified for the Ci Options for Moldflow Rotational Diffusion Model, 3D and Di Options for Moldflow Rotational Diffusion Model, 3D.

   Note: There is only one Ci parameter to specify, while Di has 3 parameters that can be specified, if the default automatic calculation is not used.