CFD modeling of movement of geobag for riverbank erosion control structures
The erosion of riverbanks led to significant environmental and infrastructure challenges, leading to soil loss, structural damage, and flooding. Since the 1970s, erosion control structures such as geobags have been widely utilized to protect riverbanks. The geobags provide several advantages, includ...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2025-08-01
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| Series: | International Journal of Sediment Research |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S100162792500006X |
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| author | Saman Shabani Yuntong She Carlos Frederico Lange |
| author_facet | Saman Shabani Yuntong She Carlos Frederico Lange |
| author_sort | Saman Shabani |
| collection | DOAJ |
| description | The erosion of riverbanks led to significant environmental and infrastructure challenges, leading to soil loss, structural damage, and flooding. Since the 1970s, erosion control structures such as geobags have been widely utilized to protect riverbanks. The geobags provide several advantages, including improved durability and cost-efficiency, compared with traditional rip-raps. To design geobags, it is necessary to understand how the geobags will perform under hydraulic loading. Despite numerous fluvial studies focusing on geobag stability, no study examined how a single bag behaves under current loads, and none of the models simulated the motion of bags. This research investigated geobag movement within the channel bed with overset mesh techniques using computational fluid dynamics (CFD). Additionally, an image processing technique was employed to evaluate the borders of the geobags within the channel. By conducting the simulation, the drag and friction forces acting on the single bag were carefully analyzed, and the effects of the shape, fill ratio and material of the geobags were determined. The failure velocity of geobags following the same pattern was determined based on a correlation with the experiment. |
| format | Article |
| id | doaj-art-9c4911f672d041a9ba3dd4cdf1f6d61f |
| institution | Matheson Library |
| issn | 1001-6279 |
| language | English |
| publishDate | 2025-08-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | International Journal of Sediment Research |
| spelling | doaj-art-9c4911f672d041a9ba3dd4cdf1f6d61f2025-07-05T04:46:41ZengKeAi Communications Co., Ltd.International Journal of Sediment Research1001-62792025-08-01404690700CFD modeling of movement of geobag for riverbank erosion control structuresSaman Shabani0Yuntong She1Carlos Frederico Lange2Department of Civil Engineering, University of Alberta, Edmonton, T6G 2R3, Alberta, CanadaDepartment of Civil Engineering, University of Alberta, Edmonton, T6G 2R3, Alberta, CanadaDepartment of Mechanical Engineering, University of Alberta, Edmonton, T6G 2R3, Alberta, Canada; Corresponding author.The erosion of riverbanks led to significant environmental and infrastructure challenges, leading to soil loss, structural damage, and flooding. Since the 1970s, erosion control structures such as geobags have been widely utilized to protect riverbanks. The geobags provide several advantages, including improved durability and cost-efficiency, compared with traditional rip-raps. To design geobags, it is necessary to understand how the geobags will perform under hydraulic loading. Despite numerous fluvial studies focusing on geobag stability, no study examined how a single bag behaves under current loads, and none of the models simulated the motion of bags. This research investigated geobag movement within the channel bed with overset mesh techniques using computational fluid dynamics (CFD). Additionally, an image processing technique was employed to evaluate the borders of the geobags within the channel. By conducting the simulation, the drag and friction forces acting on the single bag were carefully analyzed, and the effects of the shape, fill ratio and material of the geobags were determined. The failure velocity of geobags following the same pattern was determined based on a correlation with the experiment.http://www.sciencedirect.com/science/article/pii/S100162792500006XGeobagsOverset meshImage processingComputational fluid dynamics modeling |
| spellingShingle | Saman Shabani Yuntong She Carlos Frederico Lange CFD modeling of movement of geobag for riverbank erosion control structures International Journal of Sediment Research Geobags Overset mesh Image processing Computational fluid dynamics modeling |
| title | CFD modeling of movement of geobag for riverbank erosion control structures |
| title_full | CFD modeling of movement of geobag for riverbank erosion control structures |
| title_fullStr | CFD modeling of movement of geobag for riverbank erosion control structures |
| title_full_unstemmed | CFD modeling of movement of geobag for riverbank erosion control structures |
| title_short | CFD modeling of movement of geobag for riverbank erosion control structures |
| title_sort | cfd modeling of movement of geobag for riverbank erosion control structures |
| topic | Geobags Overset mesh Image processing Computational fluid dynamics modeling |
| url | http://www.sciencedirect.com/science/article/pii/S100162792500006X |
| work_keys_str_mv | AT samanshabani cfdmodelingofmovementofgeobagforriverbankerosioncontrolstructures AT yuntongshe cfdmodelingofmovementofgeobagforriverbankerosioncontrolstructures AT carlosfredericolange cfdmodelingofmovementofgeobagforriverbankerosioncontrolstructures |