Péclet number (for heat transfer using Reynolds number)

CalculationInputs﻿﻿Re
:1.00​
﻿
﻿﻿Pr
:1.00​
﻿
Output﻿﻿Pe
:1.00​
﻿
﻿
Pe=Re×PrPe=Re\times PrPe=Re×Pr
Where:
﻿﻿Re
 is Reynolds number (dimensionless), which is the ratio of inertial forces to friction forces in a fluid flow. It's used to determine whether a flow is laminar or turbulent.
﻿﻿Sc
 is Prandtl number (dimensionless), which is the ratio of two types of diffusion, momentum diffusion and thermal diffusion. The Prandtl number is the heat transfer analogue of the Schmidt number. 
﻿﻿Pe
 is Péclet number (dimensionless), which is the ratio of advection to diffusion in a fluid.
Typical valuesTypical values for Reynolds and Prandtl numbers are provided below.
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Typical values of Reynolds number for various animals moving through air or water (Source: Numerade)
﻿
Typical values of Prandtl number for various types of fluid (Source: Nuclear Power)
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