The Reynolds number is defined as
where:
- ρ is the density of the fluid (SI units: kg/m3).- u is the velocity of the fluid with respect to the object (m/s).
- L is the Internal diameter of piper (m).
- μ is the dynamic viscosity of the fluid (Pa·s or N·s/m2 or kg/m·s).
- ν is the kinematic viscosity of the fluid (m2/s).
The Reynolds number calculator