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General Information, Facts & Tables
[Fourier Number Calculator]

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Overview

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The Fourier number (Fo) is a dimensionless value relating to the ratio of the heat conduction rate to the rate of thermal energy storage. It was named after Joseph Fourier.

See Also: Open Another, Using the Calculators
 

Formula

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Fo = ( d * t ) / L2
d = ( Fo * L2 ) / t
t = ( Fo * L2 ) / d
l = (( d * t ) / Fo )0.5
 

Units

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Fo = Fourier Number.
d = Thermal diffusivity (square metres per second [m2/s]).
t = Characteristic time (seconds.[s])
l = Characteristic length (metres [m]).

 

Calculator

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Show all available units

Fo :

   

d []:

 

t []:

 

l []:

 

Note! Set unit values prior to calculating.