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LaTeX Math Block
anchorNu
alignmentleft
{\rm Nu}=\frac{ (f/8) \, ({\rm Re} - 1000) {\rm Pr}  }{ 1 + 12.7 \, (f/8)^{1/2} \, ({\rm Pr}^{2/3} -1) }

for 

LaTeX Math Inline
body--uriencoded--0.5\leq \mathrm %7BPr%7D \leq 2000
 and 
LaTeX Math Inline
body--uriencoded--%7B\displaystyle 3000\leq \mathrm %7BRe%7D\leq 5\cdot 10%5e%7B6%7D%7D
.

See also

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Physics / Thermodynamics / Heat Transfer

Heat Transfer Coefficient (HTC) ] Heat Transfer Coefficient @model ]


References

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Gnielinski, Volker (1975). "Neue Gleichungen für den Wärme- und den Stoffübergang in turbulent durchströmten Rohren und Kanälen". Forsch. Ing.-Wes. 41 (1): 8–16.


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