Setting multiphase parameters

The multiphase convection model is available only for computation on the unstructured mesh.

When convection is computed, the interface between solid and liquid phase of the sample moves and the shape of the interface changes. On the Multiphase tab of the Convection parameters dialog you can specify, when the interface shall be updated and the mesh should be tracked to the interface.

  1. Select Computation > Convection parameters.

    The Convection parameters dialog opens.

  2. Click on the Multiphase tab.

    The Multiphase tab in the Convection parameters dialog opens:

    Multiphase tab in the Convection parameters dialog 

    Figure 21. Multiphase tab in the Convection parameters dialog

  3. The values specified in Momentum (accuracy of impulse equation solution) and Temperature (accuracy of temperature equation) determine, when the interface will be adjusted:

    Set the values for adjusting the interface.

  4. Further interface updates are only done, if the difference between melt and interface is smaller than the value for Max. difference from melting point. Controller steps are only done, if the criteria for updating the interface are also fulfilled in order to keep the interface position synchronized. The smaller the value, the higher the conformity between melt and interface.

    Set the Max. difference from melting point.

  5. Click on Apply and Close.

    or

    Click on OK to apply the changes and to close the dialog.

Related Dialogs

Multiphase