sorry i may of said this wrong.
I mean a proper non dimensional scaling. Pipes/ channel blocks are v^2. Thats how they vary. You can run as many tests as you want but unless theres some odd reason due to geometery or something thats what they run like. For jet impingement style situations this approximation may be correct but i would prefer a nice good quality paper to tell me so.
That does not in anyway mean that the given results are wrong or a bad approximation at all. It just meas i can be completely confident in them, espeically as they often dont have error bars and the such like or independent verfication.
All the data ive seen on reputable sites with good method is perfectly acceptable (well my docs would give even the best a C, maybe D :P but its still good enough, which is i more often than not got
).