Prandtl Number in External flow Formulas

The Prandtl number (Pr) or Prandtl group is a dimensionless number, named after the German physicist Ludwig Prandtl, defined as the ratio of momentum diffusivity to thermal diffusivity. And is denoted by Pr.

External flow formulas that make use of Prandtl Number

fxNusselt Number based on DiameterGo

fxNusselt number for liquids and gasesGo

fxNusselt number when property variation is larger due to temperature variationGo

fxNusselt number given dynamic viscosityGo

fxNusselt number for liquid metals and siliconesGo

fxNusselt number for liquid metals and silicones with higher Reynolds number valueGo

fxNusselt Number in Forced Convection for Cross FlowGo

fxNusselt Number for LiquidsGo

FAQ

What is the Prandtl Number?

The Prandtl number (Pr) or Prandtl group is a dimensionless number, named after the German physicist Ludwig Prandtl, defined as the ratio of momentum diffusivity to thermal diffusivity.

Can the Prandtl Number be negative?

{YesorNo}, the Prandtl Number, measured in {OutputVariableMeasurementName} {CanorCannot} be negative.

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