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 can I create a UDF that can be used for 2D and 3D models?

How can I create a UDF that can be used for 2D and 3D models?

Tagged: 14, fluent, fluid-dynamics, General - FLUENT
    • June 5, 2023 at 7:05 am
      FAQFAQ
      Participant

      Data access problems can occur when you use a UDF created for a 3D model with a 2D model. A good practice is to code the UDF for both 2D and 3D. This can be done by using an if statement with RP_2D to distinguish a 2D model and RP_3D for a 3D model. Also, the Fluent utility macros ND, NV etc. can allow the user to create a UDF without specifying 2D or 3D.

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.