18.1. Creating and Editing an Injection Region

You can add one or more injection regions to a domain.

To create an injection region:

  1. Select Insert > Injection Region from the main menu, or click Injection Region   on the main toolbar, or right-click a domain in the Outline tree view and select Insert > Injection Region.

    When creating an injection region from the main menu or toolbar, you may be required to select the appropriate domain for the injection region.

  2. Enter a new name, if required, using the rules described in Valid Syntax for Named Objects and click Apply.

To edit an existing injection region:

  1. Right-click the injection region's name in the Outline tree view.

  2. Select Edit.

    The details view for the injection region appears.

    For more information on the edit command, see Outline Tree View.

The details view describes the characteristics of an injection region on a series of tabs, which are described in User Interface. To define an injection region, configure the settings in the details view, then click OK or Apply.

Injection regions are listed under the associated domain in the Outline tree.

When the visibility check box beside an injection region is selected, a preview image of the injection region appears in the 3D Viewer. The preview image is drawn differently, depending on the selected Injection Model > Option (as set in the details view, on the Injection Details tab):

  • For Circular Hole, Cylindrical Hole, and Axisymmetric Slot:

    A symbol appears at each injection position.

  • For User Defined Slot and Cylindrical Slot:

    The approximate shape of the slot is outlined.

You can optionally adjust the rendering properties of injection region by right-clicking it in the Outline tree view and selecting Render > Properties.

Note:  For injection regions that appear as symbols, the Symbol option Injection Shape is particularly recommended because the resulting symbols (wherever possible) show not only the position, but also the orientation, shape, and size, of each cooling hole or slot. For details, see Details of the Symbol Rendering Option: Injection Shape.

Additional settings for visualizing an injection region are available in the details view, on the Plot Options tab.

Related information on sources is available in Sources in the CFX-Solver Modeling Guide.