ivan.beltracchi
Subscriber

ok thank you so much fo the documentation.

I have another question regarded to the generator of fluid, because there is a condition that i can't understand.
For my problem is it necessary to model two solid volumes (one where there is initially air and the other where there is the concrete with the fibers) or it could be better to use inlet-outlet surface to generate the flowing material inside directly of the target volume? 
For my problem there is only the condition of filling a closed volume. in this second approach, how can i manage it? 

Another doubt is that, at the top of the cast, there is a plane surface along which part of the flowing volume of the material can impact (i have a hollow rectangular volume in the central zone, so the material can fill the volume laterally of this surface)