ESDU 73022
Pressure losses in threeleg pipe junctions: dividing flows.
Abstract:
ESDU 73022 gives graphical data, derived by correlating results from a wide range of experimental sources, for the pressure loss through any threeleg planar junction with dividing flow running full. The pipes may be of circular crosssection or of rectangular crosssection with length/width ratios between 1/2 and 2. The data apply to the singlephase flow of liquids, or of gases at low speeds. The accuracy of the prediction is assessed.Indexed under:
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Data Item ESDU 73022  

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This Data Item contains 12 interactive graph(s) as listed below.
Graph  Title 

Figure 1a  K'_{31} for dividing Yjunctions with sharp corners and Re_{3} ≤ 2 X 10^{5} for θ = 90° 
Figure 1b  K'_{31} for dividing Yjunctions with sharp corners and Re_{3} ≤ 2 X 10^{5} for θ = 75° 
Figure 1c  K'_{31} for dividing Yjunctions with sharp corners and Re_{3} ≤ 2 X 10^{5} for θ = 60° 
Figure 1d  K'_{31} for dividing Yjunctions with sharp corners and Re_{3} ≤ 2 X 10^{5} for θ = 45° 
Figure 1e  K'_{31} for dividing Yjunctions with sharp corners and Re_{3} ≤ 2 X 10^{5} for θ = 30° 
Figure 2a  K'_{31} for dividing angledjunctions with sharp corners and Re_{3} ≤ 2 X 10^{5} for θ = 90° 
Figure 2b  K'_{31} for dividing angledjunctions with sharp corners and Re_{3} ≤ 2 X 10^{5} for θ = 75° 
Figure 2c  K'_{31} for dividing angledjunctions with sharp corners and Re_{3} ≤ 2 X 10^{5} for θ = 60° 
Figure 2d  K'_{31} for dividing angledjunctions with sharp corners and Re_{3} ≤ 2 X 10^{5} for θ = 45° 
Figure 3  K'_{32} for dividing angledjunctions with Re_{3} ≤ 2 X 10^{5} 
Figure 4  Fork position effect, [δK_{y}]_{31}, for generalised junctions 
Figure 5  Effect of Reynolds number for Re_{3} ≤ 2 X 10^{5} 