Numerical investigation on geometric configurations affecting seepage from unlined earthen channels and the comparison with field measurements
In this study, a numerical simulation is applied to investigate the effective factors on the seepage from the earthen channels. To authenticate the information at hand, some of the earthen channels in the Zayandeh-Rud irrigation network in Iran and Gediz watershed in Turkey were studied. 246 numeric...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2020-01-01
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| Series: | Engineering Applications of Computational Fluid Mechanics |
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| Online Access: | http://dx.doi.org/10.1080/19942060.2019.1706639 |
| _version_ | 1819073623777869824 |
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| author | Reza Hosseinzadeh Asl Farzin Salmasi Hadi Arvanaghi |
| author_facet | Reza Hosseinzadeh Asl Farzin Salmasi Hadi Arvanaghi |
| author_sort | Reza Hosseinzadeh Asl |
| collection | DOAJ |
| description | In this study, a numerical simulation is applied to investigate the effective factors on the seepage from the earthen channels. To authenticate the information at hand, some of the earthen channels in the Zayandeh-Rud irrigation network in Iran and Gediz watershed in Turkey were studied. 246 numerical models, including different sections of trapezoidal, rectangular and triangular earthen channels, were performed using the finite elements method (FEM). The results showed that, for a numerical simulation, a width of 15 times wider than the top width of the water surface in the channel would be required for the modelling of the left and right lateral boundaries. The comparison of the seepage with empirical relationships showed that the empirical relationships have too much error in the seepage estimation, however, Moritz’s relation with the coefficient of determination (R2) of 0.373 was better than the others. The linear and nonlinear multivariate regression relationships provide a suitable match for the seepage discharge estimation. The wetted perimeter has been distinguished as an effective parameter in the seepage from the channels, yet the channels side slope has a low impact on the seepage. |
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| format | Article |
| id | doaj.art-c8c76ae7bb2d471a86ed70c8f2e922cd |
| institution | Directory Open Access Journal |
| issn | 1994-2060 1997-003X |
| language | English |
| last_indexed | 2024-12-21T17:56:34Z |
| publishDate | 2020-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Engineering Applications of Computational Fluid Mechanics |
| spelling | doaj.art-c8c76ae7bb2d471a86ed70c8f2e922cd2022-12-21T18:55:11ZengTaylor & Francis GroupEngineering Applications of Computational Fluid Mechanics1994-20601997-003X2020-01-0114123625310.1080/19942060.2019.17066391706639Numerical investigation on geometric configurations affecting seepage from unlined earthen channels and the comparison with field measurementsReza Hosseinzadeh Asl0Farzin Salmasi1Hadi Arvanaghi2Department of Water Engineering, Faculty of Agriculture, University of TabrizDepartment of Water Engineering, Faculty of Agriculture, University of TabrizDepartment of Water Engineering, Faculty of Agriculture, University of TabrizIn this study, a numerical simulation is applied to investigate the effective factors on the seepage from the earthen channels. To authenticate the information at hand, some of the earthen channels in the Zayandeh-Rud irrigation network in Iran and Gediz watershed in Turkey were studied. 246 numerical models, including different sections of trapezoidal, rectangular and triangular earthen channels, were performed using the finite elements method (FEM). The results showed that, for a numerical simulation, a width of 15 times wider than the top width of the water surface in the channel would be required for the modelling of the left and right lateral boundaries. The comparison of the seepage with empirical relationships showed that the empirical relationships have too much error in the seepage estimation, however, Moritz’s relation with the coefficient of determination (R2) of 0.373 was better than the others. The linear and nonlinear multivariate regression relationships provide a suitable match for the seepage discharge estimation. The wetted perimeter has been distinguished as an effective parameter in the seepage from the channels, yet the channels side slope has a low impact on the seepage.http://dx.doi.org/10.1080/19942060.2019.1706639seepageearthen channelnumerical methodboundary conditionregression |
| spellingShingle | Reza Hosseinzadeh Asl Farzin Salmasi Hadi Arvanaghi Numerical investigation on geometric configurations affecting seepage from unlined earthen channels and the comparison with field measurements Engineering Applications of Computational Fluid Mechanics seepage earthen channel numerical method boundary condition regression |
| title | Numerical investigation on geometric configurations affecting seepage from unlined earthen channels and the comparison with field measurements |
| title_full | Numerical investigation on geometric configurations affecting seepage from unlined earthen channels and the comparison with field measurements |
| title_fullStr | Numerical investigation on geometric configurations affecting seepage from unlined earthen channels and the comparison with field measurements |
| title_full_unstemmed | Numerical investigation on geometric configurations affecting seepage from unlined earthen channels and the comparison with field measurements |
| title_short | Numerical investigation on geometric configurations affecting seepage from unlined earthen channels and the comparison with field measurements |
| title_sort | numerical investigation on geometric configurations affecting seepage from unlined earthen channels and the comparison with field measurements |
| topic | seepage earthen channel numerical method boundary condition regression |
| url | http://dx.doi.org/10.1080/19942060.2019.1706639 |
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