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Heat and Mass Transfer
Prandtl Number in Flow over Flat Plate 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.
Flow over Flat Plate formulas that make use of Prandtl Number
f
x
Thermal boundary layer thickness at distance X from leading edge
Go
f
x
Nusselt number for constant wall temperature
Go
f
x
Nusselt number if heating starts from distance Xo from leading edge
Go
f
x
Nusselt number for liquid metals and for silicones
Go
f
x
Nusselt number for liquid metals only
Go
f
x
Nusselt number for constant heat flux for external flow
Go
f
x
Average temperature difference between plate and fluid
Go
f
x
Nusselt number for liquid metals or for silicones
Go
f
x
Coefficient of friction given Stanton number
Go
f
x
Nusselt Number for Frame Module
Go
f
x
Nusselt number at distance x from leading edge
Go
f
x
Average Nusselt number upto length L given Reynolds number
Go
f
x
Nusselt Number at Distance X from Leading Edge by Analogy
Go
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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