Prandtl number

noun
\ ˈpräntᵊl\

Definition of Prandtl number

: the ratio of the product of the coefficient of viscosity and the specific heat at constant pressure to the thermal conductivity in fluid flow used especially in the study of heat transfer in mechanical devices

History and Etymology for Prandtl number

after Ludwig Prandtl †1953 German physicist; translation of German Prandtlsche zahl

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