Hello ANSYS Community,
I am new to spray simulation and I was trying to follow the VOF-to-DPM methodology used in this video for a simple 2D single nozzle spray simulation -
Unfortunately, the video describes a setting that I am unable to find in the current Release 2020 R1 Academic version.
At around the 2:03 mark in the video, the video describes setting the 'model transition mechanism' to the 'injection' previously created. In the current release, there is no 'model transition tab' in the 'Phase Interaction' dialog box as such but there is a 'Heat,Mass,Reactions' tab within the 'Phase Interaction' tab of the 'Multiphase Model' dialog box (See attached image). I am assuming this is same as the model transition section earlier. But here when I try to set the mechanism, it does not show the previously created injection. The only options available are - constant-rate, cavitation, evaporation-condensation, user-defined, New Input Parameter.
I have tried using the user-defined option but it shows this error -
Error: No user-defined functions of type udf-type-linearized-mass-transfer have been loaded.
For user-defined mass transfer, linearized mass transfer UDFs are enabled.
If needed, use '/solve/set/expert' in the TUI to switch to non-linearized mass transfer UDFs.
Error Object: #f
I would appreciate any help in understanding this problem better and finding a way to fix it.
I have attached an image of the interface available to me in FLUENT Release 2020 R1 Academic Student.