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Pre-Analysis & Start-Up

This tutorial demonstrates the use of user-defined functions through boundary control of a cylinder.

First, complete the "Steady Flow Past a Cylinder" tutorial before completing this tutorial. Click here to go to the problem statement of the "Steady Flow Past a Cylinder" tutorial.

Click here to download the user-defined function file (only valid for a cylinder; a similar lift computing UDF file for an arbitrary geometry is in Exercises).

To start up, open your completed "Steady Flow Past a Cylinder" project file.

Right-click on Fluid Flow (Fluent) and then click Duplicate. Enter "Boundary Controlled" in the highlighted field to rename it.