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单相流管道,对向汇流局部压力降计算

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Selected 管道, 压降.
  • 管道
  • 压降
  • 管道
  • 压降
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 依据:SH/T 3035-2018
对向汇流局部压力降计算
名称 单位 公式/来源 值
1 示意图
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16 输入
17  流体密度,ρ kg/m³ 1000
18  断面1-1及2-2内直径,di2 m 0.06
19  断面1-1流量,qv1 m³/h 26
20  断面2-2流量,qv2 m³/h 32
21  断面3-3内直径,di3 m 0.1
22 过程
23  断面1-1或2-2与断面3-3的面积比,a / a=(di2/di3)2 0.36
24  断面3-3流量,qv3 m³/h qv3=qv1+qv2 58
25  断面3-3处合流流速,u3 m/s / 2.051330378
26  断面1-1与断面3-3的流量比,Q1 / Q1=qv1/qv3 0.448275862
27  断面2-2与断面3-3的流量比,Q2 / Q2=qv2/qv3 0.551724138
28  断面1-1至断面3-3的阻力系数,K1-3 / / 2.990942587
29  断面2-2至断面3-3的阻力系数,K2-3 / / 2.990942587
30 结果
31  断面1-1至断面3-3的局部压力降,ΔPff1-3 kPa 1 6.292877879
32  断面2-2至断面3-3的局部压力降,ΔPff2-3 kPa 1 6.292877879
计算表
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