6.4.3 Hooking DEFINE_DPM_DRAG UDFs

After you have interpreted (Chapter  4) or compiled (Chapter  5) your DEFINE_DPM_DRAG UDF, the name of the function you supplied as a DEFINE macro argument will become visible and selectable in the Discrete Phase Model dialog box (Figure  6.4.3) in ANSYS FLUENT.

To hook the UDF, first open the Discrete Phase Model dialog box.

Models Discrete Phase Edit...

Figure 6.4.3: The Discrete Phase Model Dialog Box

Click the Injections... button to open the Injections dialog box. Create an injection and then click Close in the Injections dialog box.

Next, click the Tracking tab in the Discrete Phase Model dialog box. Select the function name (e.g., particle_drag_force::libudf) from the Drag Law drop-down list in the Drag Parameters group box (Figure  6.4.3), and click OK. (Note that function names listed in the drop-down list are preceded by the word udf, as in udf particle_drag_force::libudf.)

See Section  2.5.3 for details about DEFINE_DPM_DRAG functions.