Numerical calculation methods of water distribution systems in hydraulic transient conditions

MA Fei; QU Shi-lin; WU Yi-min

doi:10.13374/j.issn1001-053x.2009.04.019

Volume 31 Issue 4

Aug. 2021

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MA Fei, QU Shi-lin, WU Yi-min. Numerical calculation methods of water distribution systems in hydraulic transient conditions[J]. Chinese Journal of Engineering, 2009, 31(4): 423-427. doi: 10.13374/j.issn1001-053x.2009.04.019

Citation:

MA Fei, QU Shi-lin, WU Yi-min. Numerical calculation methods of water distribution systems in hydraulic transient conditions[J]. Chinese Journal of Engineering, 2009, 31(4): 423-427. doi: 10.13374/j.issn1001-053x.2009.04.019

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Numerical calculation methods of water distribution systems in hydraulic transient conditions

doi: 10.13374/j.issn1001-053x.2009.04.019

1. School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2. Mechanical and Electrical Engineering School, Beijing Union University, Beijing 100020, China

Received Date: 2008-05-22
Available Online: 2021-08-09

Abstract

Abstract

Transient phenomena often happen in water distribution systems (WDS). In order to accelerate system transformation from unsteady state to steady state, two mathematical models were proposed based on the theory of transient flow, which are the method of characteristics (MOC) with re-divide damping coefficient and the lattice Boltzmann equation (LBE). These methods were used to calculate an example in WDS. It is shown that LBE is more accurate when Reynolds number is less than 7 000, otherwise MOC is more precise.
- water distribution system,
- unsteady flow,
- method of characteristics,
- lattice Boltzmann equation