hello everyone

i am a phd student in turkey, i prepared an experiment set about condensation in pipes, i want to verify my experimental results with fluent, so i am studying on gambit and fluent, my questions are below:

1- can fluent solve two phase flow without udf ? i used vof model but its solution seems single phase

2- where can i found proper udf for condensation in pipes ?

3- why is it so hard to find udf on the net? is it secret ?

my department in the university has licence number and etc..

i am looking forward to see your responses

any idea ?