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Wholly turbulent flow
Laminarflow
Transition range
Smooth
0.050.04
0.03
0.040.04
0.010.0080.0060.004
0.002
0.0010.00080.00060.0004
0.00020.0001
0.00005
0.00001
0.10.090.08
0.07
0.06
0.05
0.04
0.03
0.025
0.02
0.015
0.010.0090.008
103 104 105 106 107
2(103) 2(104) 2(105) 2(106) 2(107)4 46 68 8 4 6 8 4 6 8 4 6 8
ρVDµ
εDf
= υRe = VD D = 4Aρ = 4Rh
Graph by MIT OCW.
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