Fluid sim question

I am doing a vid for my church that concerns Noah’s ark, and I wand to make a nice, dramatic wave for one of the scenes. I don’t have too much experience with the fluid sim. (though I do know how to use it)

Could anyone shed some light on this for me? It would very much appreciated if I could be directed to a tutorial or something.

PS Has anyone else had a problem with the 2.5 fluid simulation? I hit bake, but nothing happens and there are no files placed into tmp.