Question: when using the Sieder and Tate correlation how do I find u/us Hausen NuD=3.66+1+0.04[(D/L)ReDPr]2/30.0668(D/L)ReDPr > Sieder & Tate NuD=max{1.86(L/DReDPr)1/3(s)0.14,3.66} Thermal entry length problem, or combined

when using the Sieder and Tate correlation how do I find u/us

Hausen NuD=3.66+1+0.04[(D/L)ReDPr]2/30.0668(D/L)ReDPr > Sieder & Tate NuD=max{1.86(L/DReDPr)1/3(s)0.14,3.66} Thermal entry length problem, or combined e.l.p. for Pr5 For both, properties at: Tm=(Tm,1+Tm,0)/2 Combined entry length problem for: 0.60Pr5 0.0044(/5)9.75

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