Analysis of the Flow Pattern and Flow Rectification Measures of the Side-Intake Forebay in a Multi-Unit Pumping Station
| Autor: | Yiqi Zhang, Mahmoud Hassan, Tieli Wang, Ahmed Nasr, Fan Yang |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Geography
Planning and Development Flow (psychology) 0211 other engineering and technologies 02 engineering and technology Aquatic Science Computational fluid dynamics 01 natural sciences Biochemistry 010305 fluids & plasmas 0103 physical sciences forebay whirlpools 021108 energy flow pattern TD201-500 Water Science and Technology geography pumping station geography.geographical_feature_category Computer simulation Water supply for domestic and industrial purposes Turbulence business.industry Hydraulic engineering Inlet Vortex Flow velocity numerical simulation Environmental science Reynolds-averaged Navier–Stokes equations business TC1-978 Marine engineering |
| Zdroj: | Water Volume 13 Issue 15 Water, Vol 13, Iss 2025, p 2025 (2021) |
| ISSN: | 2073-4441 |
| DOI: | 10.3390/w13152025 |
| Popis: | To improve the problem of turbulence in the forebay of the lateral inlet pumping station, a typical lateral inlet pumping station project in Xuzhou, Jiangsu Province, China was taken as the research object. The forebay of the pumping station is a building connecting the river channel and the pumping station into the water tank. Based on the Reynolds-averaged Navier-Stokes (RANS) law and the k-ε turbulence model, the computational fluid dynamics method (CFD) technology compares and analyzes the numerical simulation with or without rectification measures for the forebay of the lateral intake pumping station when multiple units are operating. The three-dimensional model was created by SolidWorks modeling software and the numerical simulation simulated by CFX-ANSYS. To alter the flow pattern in the forebay of the pumping station, various rectification measures were chosen. Internal rectification flow patterns in the forebay under multiple plans, uniformity of flow velocity distribution in the measuring section, and vortex area reduction rates are investigated and compared. Based on the analysis and comparison of numerical simulation results, when the parabolic wall and some rectification piers are set significantly it improves the flow pattern of the forebay of the lateral inlet pumping station. It also makes the flow pattern of the inlet pool better and increases the uniformity of the flow velocity distribution by 8%. Further, it reduced the vortex area by 70%, effectively improving the operating efficiency of the pump. The research results of this paper provide a technical reference for the improvement of the flow pattern in the forebay of the lateral inlet pumping station. |
| Databáze: | OpenAIRE |
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