Ansys Assistant will be unavailable on the Learning Forum starting January 30. An upgraded version is coming soon. We apologize for any inconvenience and appreciate your patience. Stay tuned for updates.
General

General

  1. All Categories
  2. Fluids - General
  3. How do I switch a boundary condition from outlet to wall and vice versa during a transient simulation?

How do I switch a boundary condition from outlet to wall and vice versa during a transient simulation?

Tagged: ansys-cfx, transient, wall
    • June 6, 2022 at 8:33 am
      FAQFAQ
      Participant

      This can be done using a workaround: Add a small additional domain downstream of the outlet, which will provide a new outlet. The previous outlet can be set to a conditional GGI interface. The opening and closing condition for the interface can be set by a logical expression. Check “Conditional Connection Control” in CFX-Pre Users Guide.

Featured Articles

Introducing Ansys Electronics Desktop on Ansys Cloud

The Watch & Learn video article provides an overview of cloud computing from Electronics Desktop and details the product licenses and subscriptions to ANSYS Cloud Service that are...

How to Create a Reflector for a Center High-Mounted Stop Lamp (CHMSL)

This video article demonstrates how to create a reflector for a center high-mounted stop lamp. Optical Part design in Ansys SPEOS enables the design and validation of multiple...

Introducing the GEKO Turbulence Model in Ansys Fluent

The GEKO (GEneralized K-Omega) turbulence model offers a flexible, robust, general-purpose approach to RANS turbulence modeling. Introducing 2 videos: Part 1 provides background information on the model and a...

Postprocessing on Ansys EnSight

This video demonstrates exporting data from Fluent in EnSight Case Gold format, and it reviews the basic postprocessing capabilities of EnSight.

© 2026 Copyright ANSYS, Inc. All rights reserved.