The option to perform venting analysis is off by default. Select this option and view or change values for vent properties, including vent size, vent exit pressure, minimum void volume, and venting analysis locations grouping before you begin setting venting analysis locations. Access the venting analysis parameters on the Venting Analysis tab of the solver parameters dialog.
Venting analysis locations indicate where vents may be placed in the mold to allow air to escape the cavity during a 3D Thermoplastics Injection Molding, Thermoplastics Overmolding, Reactive Molding or Microchip Encapsulation Fill or Fill+Pack analysis sequence using the Coupled 3D Flow solver.
Note: You must set at least one venting analysis location (node on the 3D model) before starting the analysis.
- Click
(). Cross-hairs appear, allowing you to specify the venting analysis location. The Set Venting analysis location dialog appears, allowing you to select an existing or create a new set of properties (property ID) for the new venting analysis location. Note: Set default values for venting analysis properties on the Venting Analysis tab of the solver parameters dialog. - Click the cross-hairs on the node where you want to set the venting analysis location and select its property ID.
Tip: The Air traps result of a previous analysis may indicate suitable locations to set initial venting analysis locations.
Repeat this step to set additional venting analysis locations.
- Right-click and select Finish Set Venting Analysis Locations.
- Click
in the Quick Access toolbar, or click 
then click ().
Note: You can update the vent size and vent exit pressure properties of a venting analysis location later by right-clicking on a venting analysis location icon and selecting Properties.