[HaKu]

i want to ask that whether it is possible or not:

An author has compared his numerical results of water with the experimental results of air...

[the experimental results are not non dimensional results as on y-axis the units are mm and on the x-axis the units of velcoity cm/s are there]

Now suppose the author has used the non dimensional form of incompressible Navier stokes equations so we have 1/Re on the RHS of NS.

So if he keeps the dimensions of the experimental set up in his numerical study, can he get the same velcoity profile with water to that of the experimental profiles of air??

The author has not clearly mentioned that whom he is comparing his results to...so thats why im confused.. may be he is validating air to air just to see whether code works and afterwards focusing on the water that is his area of focus..