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Peclet number

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The Peclet number is defined as

$Pe \equiv \frac{U_\infty L}{\alpha}$

Also

$Pe \equiv Re Pr$

where

$U_\infty$ is the freestream velocity
$L$ is the Characteristic Dimension of the problem
$\alpha$ is the diffusion coefficient

Retrieved from "https://mail.cfd-online.com/Wiki/Peclet_number"

Category: Dimensionless parameters

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