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The engineering parameters of a pump-station water supply system located in China are shown in Table 1, and the schematic diagram of the pipeline system is shown in Figure 3. The pipeline rises uniformly in profile. According to some particular engineering principles in China, the limited rate of pressure rise in the pipeline system φ2 = 30%. The polytropic exponent m = 1.2. Since this water supply project is still under construction currently, no measured data about the pipeline system could be presented for now. Therefore, the simulation numerical computation, which is on the basis of the method of characteristics (Streeter & Wylie 1963; Wylie et al. 1993; Chaudhry 2014), was given instead of measured data to make a comparison with the theoretical result.
Table 1

Parameters of pipeline system

Upstream water level (m) 110 Wave speed (m/s) 1,000 
Downstream water level (m) 170 Roughness coefficient 0.012 
Installation elevation of air vessel (m) 100 Pump speed (r/min) 1,450 
Pipe cross-sectional area (m2Motor power (kW) 710 
Pipe length (m) 3,000 Pump head (m) 60 
Rated flow discharge (m3/s) Moment of inertia (kg m2374 
Upstream water level (m) 110 Wave speed (m/s) 1,000 
Downstream water level (m) 170 Roughness coefficient 0.012 
Installation elevation of air vessel (m) 100 Pump speed (r/min) 1,450 
Pipe cross-sectional area (m2Motor power (kW) 710 
Pipe length (m) 3,000 Pump head (m) 60 
Rated flow discharge (m3/s) Moment of inertia (kg m2374 
Figure 3

Schematic diagram of the pipeline system.

Figure 3

Schematic diagram of the pipeline system.

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