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 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. 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: