Common
Prandtl number
Ratio of kinematic viscosity to thermal diffusivity
Prandtl number
The Prandtl number (Pr) is a dimensionless number, named for the German fluid dynamicist Ludwig Prandtl. It is defined as the ratio of momentum diffusivity to thermal diffusivity. The Prandtl number is a ratio of physical properties that may be arranged in several ways P r = ν α = momentum diffusivity thermal diffusivity = μ / ρ k / ( c p ρ ) =...
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