Storage water tank solver
 

Hello,
I'm trying to simulate a water storage tank with inlet and outlet.
I would like to know what are the most appropriate tutorial do this. I try to simulate with multiphase interFoam solver (angleDuct) but the simulation is very slow and i think that this is not the best solver.
Thank you very much :)

--- Edited it out, Misread your problem, i'm sorry --