Nusselt number formula¶
Nusselt number is the ratio of total heat transfer to conductive heat transfer at a boundary in a fluid. It can be expressed using the heat transfer coefficient of the flow, characteristic length of the system, and thermal conductivity of the fluid.
Links:
- heat_transfer_coefficient¶
heat_transfer_coefficientof the flow.
- Symbol:
h- Latex:
\(h\)
- Dimension:
power/(area*temperature)
- characteristic_length¶
characteristic_lengthof the system.
- Symbol:
l_c- Latex:
\(l_\text{c}\)
- Dimension:
length
- thermal_conductivity¶
thermal_conductivityof the fluid.
- Symbol:
k- Latex:
\(k\)
- Dimension:
power/(length*temperature)
- nusselt_number¶
- Symbol:
Nu- Latex:
\(\text{Nu}\)
- Dimension:
dimensionless
- law¶
Nu = h * l_c / k- Latex:
- \[\text{Nu} = \frac{h l_\text{c}}{k}\]