Analysis of Water-Lifting Aerator Performance Based on the Volume of Fluid Method
Water quality deterioration is a major problem faced by reservoirs globally, owing to the inflow of pollution from industrial and municipal activities. Water-lifting aeration is an in situ water quality improvement technology that mixes and oxygenates deep water bodies in reservoirs to improve pollu...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/15/5/991 |
| _version_ | 1797614187668570112 |
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| author | Zhiying Chang Tinglin Huang |
| author_facet | Zhiying Chang Tinglin Huang |
| author_sort | Zhiying Chang |
| collection | DOAJ |
| description | Water quality deterioration is a major problem faced by reservoirs globally, owing to the inflow of pollution from industrial and municipal activities. Water-lifting aeration is an in situ water quality improvement technology that mixes and oxygenates deep water bodies in reservoirs to improve pollution control efficiency and water quality. While previous studies have mainly focused on the mixing process in the reservoir outside the water-lifting aerator (WLA), knowledge of the internal flow remains limited. In this study, a two-phase flow within a WLA system was numerically studied using the volume of fluid (VOF) method to comprehensively analyze the internal two-phase flow characteristics and the influence on the water-lifting and oxygenation performance of the system. The statistical analysis results showed that increasing the aeration chamber volume enhanced the bottom oxygenation performance by 27% because of the prolonged time of the deflector plate outlet outflow. Additionally, increasing the air release rate enhanced the water-lifting performance by 47%, which was induced by the shortened air piston release period. This study demonstrates the internal flow mechanism of the WLA and provides technical support for parameter optimization design, which has significant scientific research and engineering application value. |
| first_indexed | 2024-03-11T07:06:16Z |
| format | Article |
| id | doaj.art-1ba9f0674dcc451fba8517d2ddd65d0f |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-11T07:06:16Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-1ba9f0674dcc451fba8517d2ddd65d0f2023-11-17T08:55:59ZengMDPI AGWater2073-44412023-03-0115599110.3390/w15050991Analysis of Water-Lifting Aerator Performance Based on the Volume of Fluid MethodZhiying Chang0Tinglin Huang1School of Building Services Science and Engineering, Xi’an University of Architecture & Technology, Xi’an 710055, ChinaSchool of Environmental and Municipal Engineering, Xi’an University of Architecture & Technology, Xi’an 710055, ChinaWater quality deterioration is a major problem faced by reservoirs globally, owing to the inflow of pollution from industrial and municipal activities. Water-lifting aeration is an in situ water quality improvement technology that mixes and oxygenates deep water bodies in reservoirs to improve pollution control efficiency and water quality. While previous studies have mainly focused on the mixing process in the reservoir outside the water-lifting aerator (WLA), knowledge of the internal flow remains limited. In this study, a two-phase flow within a WLA system was numerically studied using the volume of fluid (VOF) method to comprehensively analyze the internal two-phase flow characteristics and the influence on the water-lifting and oxygenation performance of the system. The statistical analysis results showed that increasing the aeration chamber volume enhanced the bottom oxygenation performance by 27% because of the prolonged time of the deflector plate outlet outflow. Additionally, increasing the air release rate enhanced the water-lifting performance by 47%, which was induced by the shortened air piston release period. This study demonstrates the internal flow mechanism of the WLA and provides technical support for parameter optimization design, which has significant scientific research and engineering application value.https://www.mdpi.com/2073-4441/15/5/991reservoirwater-lifting performanceoxygenation performancenumerical simulation |
| spellingShingle | Zhiying Chang Tinglin Huang Analysis of Water-Lifting Aerator Performance Based on the Volume of Fluid Method Water reservoir water-lifting performance oxygenation performance numerical simulation |
| title | Analysis of Water-Lifting Aerator Performance Based on the Volume of Fluid Method |
| title_full | Analysis of Water-Lifting Aerator Performance Based on the Volume of Fluid Method |
| title_fullStr | Analysis of Water-Lifting Aerator Performance Based on the Volume of Fluid Method |
| title_full_unstemmed | Analysis of Water-Lifting Aerator Performance Based on the Volume of Fluid Method |
| title_short | Analysis of Water-Lifting Aerator Performance Based on the Volume of Fluid Method |
| title_sort | analysis of water lifting aerator performance based on the volume of fluid method |
| topic | reservoir water-lifting performance oxygenation performance numerical simulation |
| url | https://www.mdpi.com/2073-4441/15/5/991 |
| work_keys_str_mv | AT zhiyingchang analysisofwaterliftingaeratorperformancebasedonthevolumeoffluidmethod AT tinglinhuang analysisofwaterliftingaeratorperformancebasedonthevolumeoffluidmethod |