Nusselt Number Calculator

Nusselt Number (Nu):

Heat Transfer Coefficient (h):

Characteristic Length (L):

Thermal Conductivity (k):

How This Is Calculated

$$ Nu = \frac{hL}{k} $$ where:

Nu = Nusselt Numebr (Dimensionless)

h = Heat Transfer Coefficient (W/m²K)

L = Characteristic Length (m)

k = Thermal Conductivity (W/mK)

Assumptions

The fluid is incompressible.
Heat transfer by radiation is neglected.
Steady flow conditions.
No heat is generated.

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