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IEVref: | 113-04-57 | ID: | |

Language: | en | Status: Standard | |

Term: | Péclet number | ||

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Symbol: | Pe
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Definition: | quantity of dimension 1 characterizing the relative importance of forced convection and thermal conduction, defined by $Pe=\frac{\rho \text{\hspace{0.05em}}{c}_{p}\text{\hspace{0.05em}}v\text{\hspace{0.05em}}l}{\lambda}=\frac{v\text{\hspace{0.05em}}l}{\alpha}$, where ρ is mass density, c is specific heat capacity at constant pressure, _{p}v is speed, l is a specified length, λ is thermal conductivity, and α is thermal diffusivityNOTE The Péclet number is the product of the Reynolds number | ||

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