If our working hypothesis that we want the fastest flow possible is true, then, even though the velocitys are small, a polished pot surface or even a surface with riblets ought to be testable superior. Creating a metalpot with riblets might be beyond our current 3D metal printing capabilities, but we could easily simply "grind-and-buff" a pot with dremel. We would have to have two identical pots, and then carefully polish one and leave the other rough.
If our working hypothesis that we want the fastest flow possible is true, then, even though the velocitys are small, a polished pot surface or even a surface with riblets ought to be testable superior. Creating a metalpot with riblets might be beyond our current 3D metal printing capabilities, but we could easily simply "grind-and-buff" a pot with dremel. We would have to have two identical pots, and then carefully polish one and leave the other rough.