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Ansys Learning Forum › Forums › Discuss Simulation › Fluids › HET_RXN_RATE UDF › Reply To: HET_RXN_RATE UDF

January 6, 2025 at 9:33 pm
sjohn
Subscriber

Got it running once I changed  Thread *tp = pt[2] to Thread *tp = pt[0] It ran for a while (which had not hapened before!) then got Floating point error.

2 is the Phase ID in the Phase Interactions GUI but since that phase is the primary phase 0 seems to work.

Since the reaction is contained in the UDF. Should the Reaction under Properties in the Material (for Phase 1 and Phase 2) be set to none or finite-rate.