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    In physics, the Péclet number is a dimensionless number relating the forced convection of a system to its heat conduction. It is equivalent to the product of the Reynolds number with the Prandtl number.
    There are various definitions of the Péclet number. The most typical are as follows:

    mathit = rac


    Pe = Re
      Pr (equivalent to above)

    mathit = rac


    mathit = rac


    With:
      l - Characteristic length
      t - Characteristic time

    It is named after Jean Claude Eugène Péclet (1793-1857).

    In engineering applications the Péclet number is typically very large.


        Péclet number
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    Scientus.org Dictionary (Yet Another Wiki) RC : 1.41
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    This article is licensed under the GNU Free Documentation License [copyleft]. It uses material from the Wikipedia article "Péclet number". link