(Untitled) | (Untitled) | (Untitled) | (Untitled) | (Untitled) | Examples |

IEVref: | 113-04-43 | ID: | |

Language: | en | Status: Standard | |

Term: | Nusselt number | ||

Synonym1: | Biot number [Preferred] | ||

Synonym2: | |||

Synonym3: | |||

Symbol: | NuBi
| ||

Definition: | quantity of dimension 1 characterizing a transfer of heat, defined by $Nu\text{\hspace{0.17em}}=\text{\hspace{0.17em}}\frac{Kl}{\lambda}$, where K is coefficient of heat transfer, l is a length characterizing the configuration, and λ is thermal conductivityNOTE 1 The Nusselt number is often calculated by empiric formulas as a function of other characteristic numbers (Reynolds number NOTE 2 The name “Biot number”, symbol | ||

Publication date: | 2011-04 | ||

Source: | |||

Replaces: | |||

Internal notes: | 2017-06-02: Cleanup - Remove Attached Image 113-04-43en.gif | ||

CO remarks: | |||

TC/SC remarks: | |||

VT remarks: | |||

Domain1: | |||

Domain2: | |||

Domain3: | |||

Domain4: | |||

Domain5: |

NOTE 1 The Nusselt number is often calculated by empiric formulas as a function of other characteristic numbers (Reynolds number *Re*, Prandtl number *Pr*, Péclet number *Pe*, Grashof number *Gr*), and then used to determine the coefficient of heat transfer *K*.

NOTE 2 The name “Biot number”, symbol *Bi*, is used when the Nusselt number is reserved for convective transport of heat.