Graetz Number in Free convection Formulas

Graetz Number is used in determining the thermally developing flow entrance length in ducts. And is denoted by Gr.

Free convection formulas that make use of Graetz Number

fxReynolds Number given Graetz NumberGo

What is the Graetz Number?

Graetz Number is used in determining the thermally developing flow entrance length in ducts.

Can the Graetz Number be negative?

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

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