17.6.2.33. Imported CFD Pressure

The Imported CFD Pressure boundary condition enables you to apply the pressure loading data contained in a Fluent-Mechanical coupling data (.cgns) file on the model. The boundary condition maps the complex pressure values contained in the file over structural entities.

This page includes the following sections:

Analysis Types

Imported CFD Pressure is only available for the Harmonic Acoustics analysis type when a Structural Physics Region is defined.

Dimensional Types

The supported dimensional types for the Imported CFD Pressure boundary condition include:

  • 3D Simulation

Geometry Types

The supported geometry types for the Imported CFD Pressure boundary condition include:

  • Solid

  • Shell

Topology Selection Options

The supported topology selection options for Imported CFD Pressure include:

  • Face

Define By Options

Imported CFD Pressure’s loading is defined using the loading data of an imported Fluent-Mechanical coupling data (.cgns) file.

Applying an Imported CFD Pressure Boundary Condition

To apply an Imported CFD Pressure:

  1. On the Environment Context tab, open the Loads drop-down menu and select Imported CFD Pressure. Alternatively, right-click the Environment tree object or in the Geometry window and select Insert > Structural > Imported CFD Pressure.

  2. Define the Scoping Method as Geometry Selection or Named Selection and then specify the geometry.

  3. Using the CFD Pressure File property, select the desired file for import.

Note:  Only one Imported CFD Pressure boundary condition is allowed per Environment.

Details Pane Properties

The selections available in the Details pane are described below.

CategoryProperty/Options/Description

Scope

Scoping Method: Options include:

  • Geometry Selection: Default setting, indicating that the boundary condition is applied to a geometry or geometries, which are chosen using a graphical selection tool.

    • Geometry: Visible when the Scoping Method is set to Geometry Selection. Only face selection is supported. Displays the type of geometry (Face) and the number of geometric entities (for example: 1 Face, 2 Faces) to which the boundary has been applied using the selection tools.

  • Named Selection: Indicates that the geometry selection is defined by a Named Selection. Only face-based Named Selections are supported.

    • Named Selection: Visible when the Scoping Method is set to Named Selection. This field provides a drop-down list of available user-defined Named Selections.

Definition

Type: Read-only property that displays the boundary condition type - Imported CFD Pressure.

CFD Pressure File: This property opens a dialog you use to and browse to and select the desired file.

Suppressed: Include (No - default) or exclude (Yes) the boundary condition.

Mechanical APDL References and Notes

The following Mechanical APDL commands, element types, and considerations are applicable for this boundary condition.

The pressure loading data is applied using the FLUREAD command by creating the SURF154 element on the selected topology.
API Reference

For specific scripting information, see the Imported CFD Pressure section of the ACT API Reference Guide.