2D Model to Investigate the Morphological and Hydraulic Changes of Meanders
River engineering investigations require some level of hydrodynamic and morphologic analysis. The detailed of the hydraulic and morphologic features through meander evolution can be recorded by the numerical model spatially and temporally. The Center for Computational Hydro-science and Engineering,...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Unviversity of Technology- Iraq
2020-01-01
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| Series: | Engineering and Technology Journal |
| Subjects: | |
| Online Access: | https://etj.uotechnology.edu.iq/article_168170_521a56562796e4af00ea1cd344544d9f.pdf |
| _version_ | 1797336435907362816 |
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| author | Jaafar S. Maatooq Luay K. Hameed |
| author_facet | Jaafar S. Maatooq Luay K. Hameed |
| author_sort | Jaafar S. Maatooq |
| collection | DOAJ |
| description | River engineering investigations require some level of hydrodynamic and morphologic analysis. The detailed of the hydraulic and morphologic features through meander evolution can be recorded by the numerical model spatially and temporally. The Center for Computational Hydro-science and Engineering, two- dimensional model (CCHE2D V3.29) was adopted to investigate the hydraulic and morphologic changes through meander’s evolution. Through the experimental work, a series of experiments runs were carried out through combining different geometric and hydraulic parameters to produce different experiment conditions. These parameters are flow rate, bed slope, and different initial incised and wide channels for both rectangular and trapezoidal sections. The CCHE2D model was calibrated and verified using two sets of experimental data. According to the computed values of statistical indicators, BIAS, NSE, and MAE of 0.0084, 0.96, and 0.0132 respectively for water level simulation, and 0.007,0.94, and 0.0182 respectively for bed level simulation, the calibrated Manning’s roughness which gives an acceptable agreement between simulated and measured water and bed levels was 0.029. The verification results were evaluated by the same statistical indicators of BIAS, NSE, and MAE of 0.09, 0.81, and 0.018, respectively, as evidenced by the statistical indicators, values that the CCHE2D model was reasonably capable of simulating the hydraulic and morphological changes through meander evolution. |
| first_indexed | 2024-03-08T08:54:26Z |
| format | Article |
| id | doaj.art-6a5cd711dd5f4eaeaf30d4f3d49ac981 |
| institution | Directory Open Access Journal |
| issn | 1681-6900 2412-0758 |
| language | English |
| last_indexed | 2024-03-08T08:54:26Z |
| publishDate | 2020-01-01 |
| publisher | Unviversity of Technology- Iraq |
| record_format | Article |
| series | Engineering and Technology Journal |
| spelling | doaj.art-6a5cd711dd5f4eaeaf30d4f3d49ac9812024-02-01T07:28:45ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582020-01-01381A91910.30684/etj.v38i1A.951681702D Model to Investigate the Morphological and Hydraulic Changes of MeandersJaafar S. Maatooq0Luay K. Hameed1Civil Engineering Department, University of Technology, Baghdad, Iraq. 40071@uotechnology.edu.iqCivil Engineering, Department, University of Technology, Baghdad, Iraq. luayk.alwaeli@uokufa.edu.iqRiver engineering investigations require some level of hydrodynamic and morphologic analysis. The detailed of the hydraulic and morphologic features through meander evolution can be recorded by the numerical model spatially and temporally. The Center for Computational Hydro-science and Engineering, two- dimensional model (CCHE2D V3.29) was adopted to investigate the hydraulic and morphologic changes through meander’s evolution. Through the experimental work, a series of experiments runs were carried out through combining different geometric and hydraulic parameters to produce different experiment conditions. These parameters are flow rate, bed slope, and different initial incised and wide channels for both rectangular and trapezoidal sections. The CCHE2D model was calibrated and verified using two sets of experimental data. According to the computed values of statistical indicators, BIAS, NSE, and MAE of 0.0084, 0.96, and 0.0132 respectively for water level simulation, and 0.007,0.94, and 0.0182 respectively for bed level simulation, the calibrated Manning’s roughness which gives an acceptable agreement between simulated and measured water and bed levels was 0.029. The verification results were evaluated by the same statistical indicators of BIAS, NSE, and MAE of 0.09, 0.81, and 0.018, respectively, as evidenced by the statistical indicators, values that the CCHE2D model was reasonably capable of simulating the hydraulic and morphological changes through meander evolution.https://etj.uotechnology.edu.iq/article_168170_521a56562796e4af00ea1cd344544d9f.pdfhydrodynamiccche2d modelmeanderingexperimental model |
| spellingShingle | Jaafar S. Maatooq Luay K. Hameed 2D Model to Investigate the Morphological and Hydraulic Changes of Meanders Engineering and Technology Journal hydrodynamic cche2d model meandering experimental model |
| title | 2D Model to Investigate the Morphological and Hydraulic Changes of Meanders |
| title_full | 2D Model to Investigate the Morphological and Hydraulic Changes of Meanders |
| title_fullStr | 2D Model to Investigate the Morphological and Hydraulic Changes of Meanders |
| title_full_unstemmed | 2D Model to Investigate the Morphological and Hydraulic Changes of Meanders |
| title_short | 2D Model to Investigate the Morphological and Hydraulic Changes of Meanders |
| title_sort | 2d model to investigate the morphological and hydraulic changes of meanders |
| topic | hydrodynamic cche2d model meandering experimental model |
| url | https://etj.uotechnology.edu.iq/article_168170_521a56562796e4af00ea1cd344544d9f.pdf |
| work_keys_str_mv | AT jaafarsmaatooq 2dmodeltoinvestigatethemorphologicalandhydraulicchangesofmeanders AT luaykhameed 2dmodeltoinvestigatethemorphologicalandhydraulicchangesofmeanders |