[deeppow]

Originally posted by Alchemy
Unless you know of a fluid with the exact same density, heat capacity, viscosity, thermal condution coefficient, etc.,

Alchemy, you're suppose to be the professor so don't BS me. That is why they use dimensionless numbers. You don't have to redevelop the correlations that are developed using them as long as certain scaling parameters are satisfied.

Simulants are a compromise but they work. In this case I assume we would like to use the same hardware and stay single-phase-turbulent flow? Other things (flow rate and power for example) can be adjusted.