Flow regime
Re = (rho x v x D) / mu, or Re = (v x D) / nu. D is converted from millimeters to meters.
Laminar is Re < 2300. Transition is 2300 <= Re <= 4000. Turbulent is Re > 4000. The transition band is not treated as a sharp switch.
Re = (rho x v x D) / mu, or Re = (v x D) / nu. D is converted from millimeters to meters.
Laminar is Re < 2300. Transition is 2300 <= Re <= 4000. Turbulent is Re > 4000. The transition band is not treated as a sharp switch.