hi,
I don't know if this will help, but I learned to add sound effects from this https://cgcookie.com/lesson/sourcing-sound-fx, it is from an older version of blender but pretty much works the same. This site has some free sound effects https://freesound.org. I think it looks nice, the hard part of fluids or smoke for me for it not appear as if it is in a container (hope that made sense).