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IEVref:113-04-43ID:
Language:enStatus: Standard
Term: Nusselt number
Synonym1: Biot number
[Preferred]
Synonym2:
Synonym3:
Symbol: Nu
Bi
Definition: quantity of dimension 1 characterizing a transfer of heat, defined by Nu= Kl λ MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGe aGqk0di9Wr=fpeei0di9v8qiW7rqqrVepeea0xe9LqFf0xc9q8qqaq Fn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpe WZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaaiaad6eacaWG1bGaaG PaVlabg2da9iaaykW7daWcaaqaaiaadUeacaWGSbaabaGaeq4UdWga aaaa@423B@ , where K is coefficient of heat transfer, l is a length characterizing the configuration, and λ is thermal conductivity

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.


Publication date:2011-04
Source:
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Internal notes:2017-06-02: Cleanup - Remove Attached Image 113-04-43en.gif
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