Experimental Study on the Characteristics of Sediment Transport and Sorting in Pressurized Pipes
Sediment transport in pipes is an effective engineering measure used to reallocate water–sediment resources and is widely used in reservoir flooding and sediment discharging, river dredging, floodplain area deposition, as well as other projects. An experimental investigation of sediment transport in...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-10-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/13/19/2782 |
| _version_ | 1797515649711341568 |
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| author | Yan Li Jinliang Zhang Haijue Xu Yuchuan Bai |
| author_facet | Yan Li Jinliang Zhang Haijue Xu Yuchuan Bai |
| author_sort | Yan Li |
| collection | DOAJ |
| description | Sediment transport in pipes is an effective engineering measure used to reallocate water–sediment resources and is widely used in reservoir flooding and sediment discharging, river dredging, floodplain area deposition, as well as other projects. An experimental investigation of sediment transport in pressurized pipes, with heterogeneous sediment (d<sub>50</sub> = 107 μm) of the lower Yellow River as the experimental material, is presented. This study mainly explored the change law of sediment transport and sorting in pressure pipes with an internal diameter of 0.08 m. The experimental results reveal that the presence of sediment significantly changed the distribution of the flow velocity field. At the same flow rate, the velocity of the lower water body with a high sediment concentration decreased, while that of the upper water body increased. At a low water flow rate, the increase in sediment concentration caused an asymmetric distribution of the cross-sectional velocity. The vertical concentration decreased in height, and the obvious stratification of vertical sediment particles was observed. With the increase in the flow rate, the asymmetry of the velocity distribution significantly decreased, the concentration profile tended towards being uniformly distributed along the vertical direction, and the separation effect of the sediment particles weakened. |
| first_indexed | 2024-03-10T06:47:57Z |
| format | Article |
| id | doaj.art-27223ccaf1cb46c0bd7f99d72d492d2c |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-10T06:47:57Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-27223ccaf1cb46c0bd7f99d72d492d2c2023-11-22T17:02:37ZengMDPI AGWater2073-44412021-10-011319278210.3390/w13192782Experimental Study on the Characteristics of Sediment Transport and Sorting in Pressurized PipesYan Li0Jinliang Zhang1Haijue Xu2Yuchuan Bai3Institute for Sedimentation on River and Coastal Engineering, Tianjin University, Tianjin 300072, ChinaInstitute for Sedimentation on River and Coastal Engineering, Tianjin University, Tianjin 300072, ChinaInstitute for Sedimentation on River and Coastal Engineering, Tianjin University, Tianjin 300072, ChinaInstitute for Sedimentation on River and Coastal Engineering, Tianjin University, Tianjin 300072, ChinaSediment transport in pipes is an effective engineering measure used to reallocate water–sediment resources and is widely used in reservoir flooding and sediment discharging, river dredging, floodplain area deposition, as well as other projects. An experimental investigation of sediment transport in pressurized pipes, with heterogeneous sediment (d<sub>50</sub> = 107 μm) of the lower Yellow River as the experimental material, is presented. This study mainly explored the change law of sediment transport and sorting in pressure pipes with an internal diameter of 0.08 m. The experimental results reveal that the presence of sediment significantly changed the distribution of the flow velocity field. At the same flow rate, the velocity of the lower water body with a high sediment concentration decreased, while that of the upper water body increased. At a low water flow rate, the increase in sediment concentration caused an asymmetric distribution of the cross-sectional velocity. The vertical concentration decreased in height, and the obvious stratification of vertical sediment particles was observed. With the increase in the flow rate, the asymmetry of the velocity distribution significantly decreased, the concentration profile tended towards being uniformly distributed along the vertical direction, and the separation effect of the sediment particles weakened.https://www.mdpi.com/2073-4441/13/19/2782pipe experimentheterogeneous sedimentvelocity distributionsediment concentration profilesediment sorting |
| spellingShingle | Yan Li Jinliang Zhang Haijue Xu Yuchuan Bai Experimental Study on the Characteristics of Sediment Transport and Sorting in Pressurized Pipes Water pipe experiment heterogeneous sediment velocity distribution sediment concentration profile sediment sorting |
| title | Experimental Study on the Characteristics of Sediment Transport and Sorting in Pressurized Pipes |
| title_full | Experimental Study on the Characteristics of Sediment Transport and Sorting in Pressurized Pipes |
| title_fullStr | Experimental Study on the Characteristics of Sediment Transport and Sorting in Pressurized Pipes |
| title_full_unstemmed | Experimental Study on the Characteristics of Sediment Transport and Sorting in Pressurized Pipes |
| title_short | Experimental Study on the Characteristics of Sediment Transport and Sorting in Pressurized Pipes |
| title_sort | experimental study on the characteristics of sediment transport and sorting in pressurized pipes |
| topic | pipe experiment heterogeneous sediment velocity distribution sediment concentration profile sediment sorting |
| url | https://www.mdpi.com/2073-4441/13/19/2782 |
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