Nusselt number Calculator

The Nusselt number ($Nu$) is a dimensionless number used in heat transfer calculations. Its formula depends on the specific situation, but a common formula for forced convection over a flat plate is:

Where:

• $Nu$ is the Nusselt number,
• $h$ is the convective heat transfer coefficient,
• $L$ is the characteristic length (typically the length of the surface over which heat transfer occurs), and
• $k$ is the thermal conductivity of the fluid.