Now we create a plane that is going to be our floor.
Everything is ready. Now we have to export the geometry. In Utilities click on more... and then on SceneData Saver.
Select all of your objects (glass and floor) and click on SD saver settings. A new window will appear, click on SET. In the next window that is going to show up, if you don't want to change the time interval, click on SAVE SEQUENCE and choose the place you want to save your .sd file
Creating the fluid (realflow)
In the first window that appears, choose the name of the project and click on Create new project. Lets import the geometry. File>import>Import SD Scene. Choose the file and import.
We have the geometry, now it's time to create the emitter. We create a Circle emitter and we place him where we want (in my case pretty high).