Defining a fluid exchange interaction

A fluid exchange interaction allows you to define the movement of fluid between a cavity and the surrounding environment or between two cavities. The fluid exchange interaction cannot be modified or deactivated in subsequent analysis steps. For a detailed discussion, see Fluid exchange definition.

Related Topics
Interaction editors
In Other Guides
Fluid cavity definition

  1. From the main menu bar, select InteractionCreate.

    Tip: You can also create a fluid cavity interaction using the tool in the Interaction module toolbox.

  2. In the Create Interaction dialog box that appears, do the following:

    • Name the interaction. For more information about naming objects, see Using basic dialog box components.

    • Select Initial for the step in which the interaction will be created.

    • Select the Fluid exchange type of interaction.

  3. Click Continue to close the Create Interaction dialog box.

    Abaqus/CAE opens the Edit Interaction dialog box.

  4. Toggle on the desired exchange definition, To environment or Between cavities.

  5. Select the primary fluid cavity interaction, Fluid cavity interaction 1.

  6. If you are defining an exchange between cavities, select Fluid cavity interaction 2.

  7. Select a Fluid exchange property. If desired, click to create the interaction property; see Defining a fluid exchange interaction property, for more information.

  8. Enter a value for the Effective exchange area.

    The effective exchange area represents the cross-sectional area of a pipe that the fluid is exchanged through.

  9. Click OK to create the interaction and to close the editor.

    Symbols that represent the fluid exchange interaction that you just created appear in the viewport. For more information, see Understanding symbols that represent interactions, constraints, and connectors.