The Vortex Characteristics and Anti-Vortex Mechanism in a Lateral Agricultural Irrigation Pump Station with a Symmetrical Inlet-Distributed Method
Symmetric lateral inlet pumping stations are commonly utilized for water lifting in agricultural multi-crop irrigation districts, but they often share non-ideal flow patterns, which can easily cause pump vibration and sediment deposition. In this paper, a symmetrical lateral pumping station in an ir...
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MDPI AG
2024-11-01
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| author | Zeyu Huang Can Luo Yajun Wang Haojie Liang Li Cheng Kangzhu Jing Rui Zhu Bowen Zhang |
| author_facet | Zeyu Huang Can Luo Yajun Wang Haojie Liang Li Cheng Kangzhu Jing Rui Zhu Bowen Zhang |
| author_sort | Zeyu Huang |
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| description | Symmetric lateral inlet pumping stations are commonly utilized for water lifting in agricultural multi-crop irrigation districts, but they often share non-ideal flow patterns, which can easily cause pump vibration and sediment deposition. In this paper, a symmetrical lateral pumping station in an irrigation district is taken as the research object, and CFD (Computational Fluid Dynamics) technology is used to study it. The model test used a model scale ratio of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi>λ</mi></mrow><mrow><mi>L</mi></mrow></msub></mrow></semantics></math></inline-formula> = 1:18. Results: By comparing the CFD data and test data, the average relative error for the left station is found to be 3.213%, while that for the right station is 5.107%, indicating that the numerical simulation method is reliable. Six different rectification measures are proposed, the cross sectional flow pattern of the pumping station is observed, and the longitudinal profile of axial velocity distribution in the sump is analyzed. The velocity-weighted average angle and hydraulic loss of each case study are also analyzed. The flow operates smoothly in case study 7. The vortex in the approach channel disappears when the columns and bottom sill are finally installed. Compared to the original case study, the velocity-weighted average angle at the 5# station in case study 7 increased by 14%, and it increased by 13.9% at station #9. The flow became more stable, and hydraulic losses were minimized. The simulated hydraulic loss in case study 7 decreased by 14.2%. These findings can serve as a reference for similar pump station projects. |
| format | Article |
| id | doaj-art-bd00972fbca8432a9f30c8289eee6c6c |
| institution | DOAJ |
| issn | 2077-0472 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
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| series | Agriculture |
| spelling | doaj-art-bd00972fbca8432a9f30c8289eee6c6c2025-08-20T02:55:42ZengMDPI AGAgriculture2077-04722024-11-011412217010.3390/agriculture14122170The Vortex Characteristics and Anti-Vortex Mechanism in a Lateral Agricultural Irrigation Pump Station with a Symmetrical Inlet-Distributed MethodZeyu Huang0Can Luo1Yajun Wang2Haojie Liang3Li Cheng4Kangzhu Jing5Rui Zhu6Bowen Zhang7College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 225009, ChinaCollege of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 225009, ChinaPowerchina Huadong Engineering Corporation Limited, Hangzhou 310000, ChinaJiangsu Province General Irrigation Canal Management, Huai’an 223200, ChinaCollege of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 225009, ChinaCollege of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 225009, ChinaCollege of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 225009, ChinaDepartment of Energy and Power Engineering, Tsinghua University, Beijing 100084, ChinaSymmetric lateral inlet pumping stations are commonly utilized for water lifting in agricultural multi-crop irrigation districts, but they often share non-ideal flow patterns, which can easily cause pump vibration and sediment deposition. In this paper, a symmetrical lateral pumping station in an irrigation district is taken as the research object, and CFD (Computational Fluid Dynamics) technology is used to study it. The model test used a model scale ratio of <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mi>λ</mi></mrow><mrow><mi>L</mi></mrow></msub></mrow></semantics></math></inline-formula> = 1:18. Results: By comparing the CFD data and test data, the average relative error for the left station is found to be 3.213%, while that for the right station is 5.107%, indicating that the numerical simulation method is reliable. Six different rectification measures are proposed, the cross sectional flow pattern of the pumping station is observed, and the longitudinal profile of axial velocity distribution in the sump is analyzed. The velocity-weighted average angle and hydraulic loss of each case study are also analyzed. The flow operates smoothly in case study 7. The vortex in the approach channel disappears when the columns and bottom sill are finally installed. Compared to the original case study, the velocity-weighted average angle at the 5# station in case study 7 increased by 14%, and it increased by 13.9% at station #9. The flow became more stable, and hydraulic losses were minimized. The simulated hydraulic loss in case study 7 decreased by 14.2%. These findings can serve as a reference for similar pump station projects.https://www.mdpi.com/2077-0472/14/12/2170lateral agricultural irrigation pump stationsymmetrical inletanti-vortex mechanismcombined rectification |
| spellingShingle | Zeyu Huang Can Luo Yajun Wang Haojie Liang Li Cheng Kangzhu Jing Rui Zhu Bowen Zhang The Vortex Characteristics and Anti-Vortex Mechanism in a Lateral Agricultural Irrigation Pump Station with a Symmetrical Inlet-Distributed Method Agriculture lateral agricultural irrigation pump station symmetrical inlet anti-vortex mechanism combined rectification |
| title | The Vortex Characteristics and Anti-Vortex Mechanism in a Lateral Agricultural Irrigation Pump Station with a Symmetrical Inlet-Distributed Method |
| title_full | The Vortex Characteristics and Anti-Vortex Mechanism in a Lateral Agricultural Irrigation Pump Station with a Symmetrical Inlet-Distributed Method |
| title_fullStr | The Vortex Characteristics and Anti-Vortex Mechanism in a Lateral Agricultural Irrigation Pump Station with a Symmetrical Inlet-Distributed Method |
| title_full_unstemmed | The Vortex Characteristics and Anti-Vortex Mechanism in a Lateral Agricultural Irrigation Pump Station with a Symmetrical Inlet-Distributed Method |
| title_short | The Vortex Characteristics and Anti-Vortex Mechanism in a Lateral Agricultural Irrigation Pump Station with a Symmetrical Inlet-Distributed Method |
| title_sort | vortex characteristics and anti vortex mechanism in a lateral agricultural irrigation pump station with a symmetrical inlet distributed method |
| topic | lateral agricultural irrigation pump station symmetrical inlet anti-vortex mechanism combined rectification |
| url | https://www.mdpi.com/2077-0472/14/12/2170 |
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