IEVref:	113-04-54		ID:
Language:	en		Status: Standard
Term:	Prandtl number
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Symbol:	Pr
Definition:	quantity of dimension 1 characterizing the relative importance of viscosity and thermal diffusivity, defined by ${\displaystyle Pr=\frac{\eta c_p}{\lambda }=\frac{\nu }{\alpha }}$, where η is dynamic viscosity, cp is specific heat capacity at constant pressure, λ is thermal conductivity, ν is kinematic viscosity, and α is thermal diffusivity
Publication date:	2011-04
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Internal notes:	2014-07-10: Symbol <i>P</i><sub><i>r</sub> corrected to <i>P</i><sub><i>r</i></sub>. JGO 2017-06-02: Cleanup - Remove Attached Image 113-04-54en.gif 2019-01-28: <i>P</i><sub><i>r</i></sub> corrected to <i>Pr</i> as confirmed by Erik Jacobson. JGO
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