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Heat and Mass Transfer
Nusselt Number in Flow inside tubes Formulas
The Nusselt Number is a dimensionless quantity that represents the ratio of convective to conductive heat transfer in fluid flow, indicating the efficiency of heat transfer. And is denoted by Nu.
Formulas to find Nusselt Number in Flow inside tubes
f
x
Nusselt number for hydrodynamic length fully developed and thermal length still developing
Go
f
x
Nusselt number for short lengths
Go
f
x
Nusselt number for simultaneous development of hydrodynamic and thermal layers
Go
f
x
Nusselt number for simultaneous development of hydrodynamic and thermal layers for liquids
Go
f
x
Nusselt number for short tube thermal development
Go
f
x
Nusselt Number by Sieder-Tate for Shorter Tubes
Go
List of variables in Flow inside tubes formulas
f
x
Diameter of Hydrodynamic Entry Tube
Go
f
x
Length
Go
f
x
Reynolds Number Dia
Go
f
x
Prandtl Number
Go
f
x
Diameter of Thermal Entry Tube
Go
f
x
Dynamic Viscosity at Bulk Temperature
Go
f
x
Dynamic Viscosity at Wall Temperature
Go
f
x
Reynolds Number
Go
f
x
Diameter of Tube
Go
f
x
Length of Cylinder
Go
f
x
Fluid Viscosity (at fluid bulk temperature)
Go
f
x
Fluid Viscosity (At pipe wall temperature)
Go
FAQ
What is the Nusselt Number?
The Nusselt Number is a dimensionless quantity that represents the ratio of convective to conductive heat transfer in fluid flow, indicating the efficiency of heat transfer.
Can the Nusselt Number be negative?
{YesorNo}, the Nusselt Number, measured in {OutputVariableMeasurementName} {CanorCannot} be negative.
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