I will share with you my tutorial on RealFlow (english version), is divided in two part. I Show also a communication with 3DS Max and rendering with Krakatoa.
RealFlow waterfall tutorial part1 - http://youtu.be/BoZSlvjrByw
In this lesson (about 1 h) I show you some basic concept of Realflow (interface, import geometry, emitters, initial state, ect etc....). Finally I create a little simulation of waterfall for show that tools.
RealFlow waterfall tutorial part2 - http://youtu.be/X4PBB4_LhZ4
In this lesson I show you some basic concept of Krakatoa for rendering simulation of waterfall.
Also I show you some concept of mesh from Realflow and the classic workflow for simulation and rendering.
You can find the final footage here - http://youtu.be/sY1IQQk-KIo
I hope to help you, thank you for your time.