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IEVref:113-04-57ID:
Language:enStatus: Standard
Term: Péclet number
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Symbol: Pe
Definition: quantity of dimension 1 characterizing the relative importance of forced convection and thermal conduction, defined by Pe= ρ c p vl λ = vl α MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGe aGqk0di9Wr=fpeei0di9v8qiW7rqqrVepeea0xe9LqFf0xc9q8qqaq Fn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpe WZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaaiaadcfacaWGLbGaey ypa0ZaaSaaaeaacqaHbpGCcaaMi8Uaam4yamaaBaaaleaacaWGWbaa beaakiaayIW7ruGqV92AGeKB0LwC1fgaiuGacaWF2bGaaGjcVlaadY gaaeaacqaH7oaBaaGaeyypa0ZaaSaaaeaacaWF2bGaaGjcVlaadYga aeaacqaHXoqyaaaaaa@5295@ , where ρ is mass density, cp is specific heat capacity at constant pressure, v is speed, l is a specified length, λ is thermal conductivity, and α is thermal diffusivity

NOTE The Péclet number is the product of the Reynolds number Re and the Prandtl number Pr, thus Pe = RePr.


Publication date:2011-04
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Internal notes:2017-06-02: Cleanup - Remove Attached Image 113-04-57en.gif
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