Nusselt Number Calculator

Find convective heat transfer coefficient from Nusselt correlations.

CALCULATE

Formulas

Nu = hL/k

Dittus-Boelter: Nu = 0.023 Re^0.8 Pr^0.4 (turbulent, heating). Valid for Re > 10,000.

Nusselt Number

Ratio of convective to conductive heat transfer. Nu = 1: pure conduction. Higher Nu = stronger convection. Prandtl numbers: Air 0.71, Water 7, Engine oil 100-1000. Used in heat exchanger and cooling system design.

Ad (728x90)