Numerical Study of the Effect of Radius of Curvature on the Flow Pattern Around a T-Shaped Spur Dike Located at a 90 Degree Bend with a Rigid Bed
Spur dikes are rigid hydraulic structures built out from a river bank used in order to protect it from the rushing water. These structures also play significant roles in changing the river's depth, in causing sedimentation, in controlling erosion along the river, and in dealing with some enviro...
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| Format: | Article |
| Language: | fas |
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Marvdasht Branch, Islamic Azad University
2014-11-01
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| Series: | مهندسی منابع آب |
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| Online Access: | https://wej.marvdasht.iau.ir/article_532_d7146e897d131d065c2f8a1b8a8edf6d.pdf |
| _version_ | 1827385613909753856 |
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| author | M. V M. GH B. S M. A |
| author_facet | M. V M. GH B. S M. A |
| author_sort | M. V |
| collection | DOAJ |
| description | Spur dikes are rigid hydraulic structures built out from a river bank used in order to protect it from the rushing water. These structures also play significant roles in changing the river's depth, in causing sedimentation, in controlling erosion along the river, and in dealing with some environmental issue. In this paper, the flow pattern around a T-shaped spur dike at a 45 degree position located in a 90 degree bend with a rigid bed has been investigated, while the radius of curvature changes, but geometry of the spur dike (l/L = 1) and a discharge of 25 liters per second around it remain constant. The results indicate that as the radius of curvature increases, the vortex downstream becomes smaller in a way that when the central radius increases three times of the channel width, the vortex length decreases three times that of the spur dike length, and its radius reduces as much as 0.9 fold of the spur dike length. The roles of the radius of curvature and the analyses of the results have been discussed in this paper. |
| first_indexed | 2024-03-08T15:29:00Z |
| format | Article |
| id | doaj.art-e855f58e0d744329a4f6726340078b09 |
| institution | Directory Open Access Journal |
| issn | 2008-6377 2423-7191 |
| language | fas |
| last_indexed | 2024-03-08T15:29:00Z |
| publishDate | 2014-11-01 |
| publisher | Marvdasht Branch, Islamic Azad University |
| record_format | Article |
| series | مهندسی منابع آب |
| spelling | doaj.art-e855f58e0d744329a4f6726340078b092024-01-10T08:06:54ZfasMarvdasht Branch, Islamic Azad Universityمهندسی منابع آب2008-63772423-71912014-11-017225162532Numerical Study of the Effect of Radius of Curvature on the Flow Pattern Around a T-Shaped Spur Dike Located at a 90 Degree Bend with a Rigid BedM. V0M. GH1B. S2M. A3استادیار سازه های هیدرولیکی، گروه مهندسی عمران، دانشکده فنی و مهندسی، دانشگاه خلیج فارس، بوشهراستاد هیدرولیک، دانشکده مهندسی عمران و محیط زیست، دانشگاه تربیت مدرس، تهرانفارغ التحصیل کارشناسی ارشد، گروه مهندسی عمران، دانشگاه آزاد اسلامی، بوشهردانشجوی کارشناسی ارشد، سازه های هیدرولیکی، گروه مهندسی عمران، دانشکده فنی و مهندسی، دانشگاه خلیج فارس، بوشهر *- نویسنده مسوول مقاله: vaghefi@pgu.ac.irSpur dikes are rigid hydraulic structures built out from a river bank used in order to protect it from the rushing water. These structures also play significant roles in changing the river's depth, in causing sedimentation, in controlling erosion along the river, and in dealing with some environmental issue. In this paper, the flow pattern around a T-shaped spur dike at a 45 degree position located in a 90 degree bend with a rigid bed has been investigated, while the radius of curvature changes, but geometry of the spur dike (l/L = 1) and a discharge of 25 liters per second around it remain constant. The results indicate that as the radius of curvature increases, the vortex downstream becomes smaller in a way that when the central radius increases three times of the channel width, the vortex length decreases three times that of the spur dike length, and its radius reduces as much as 0.9 fold of the spur dike length. The roles of the radius of curvature and the analyses of the results have been discussed in this paper.https://wej.marvdasht.iau.ir/article_532_d7146e897d131d065c2f8a1b8a8edf6d.pdft-shape spur dikeflow patternradius of curvature90 degree bendflow 3d |
| spellingShingle | M. V M. GH B. S M. A Numerical Study of the Effect of Radius of Curvature on the Flow Pattern Around a T-Shaped Spur Dike Located at a 90 Degree Bend with a Rigid Bed مهندسی منابع آب t-shape spur dike flow pattern radius of curvature 90 degree bend flow 3d |
| title | Numerical Study of the Effect of Radius of Curvature on the Flow Pattern Around a T-Shaped Spur Dike Located at a 90 Degree Bend with a Rigid Bed |
| title_full | Numerical Study of the Effect of Radius of Curvature on the Flow Pattern Around a T-Shaped Spur Dike Located at a 90 Degree Bend with a Rigid Bed |
| title_fullStr | Numerical Study of the Effect of Radius of Curvature on the Flow Pattern Around a T-Shaped Spur Dike Located at a 90 Degree Bend with a Rigid Bed |
| title_full_unstemmed | Numerical Study of the Effect of Radius of Curvature on the Flow Pattern Around a T-Shaped Spur Dike Located at a 90 Degree Bend with a Rigid Bed |
| title_short | Numerical Study of the Effect of Radius of Curvature on the Flow Pattern Around a T-Shaped Spur Dike Located at a 90 Degree Bend with a Rigid Bed |
| title_sort | numerical study of the effect of radius of curvature on the flow pattern around a t shaped spur dike located at a 90 degree bend with a rigid bed |
| topic | t-shape spur dike flow pattern radius of curvature 90 degree bend flow 3d |
| url | https://wej.marvdasht.iau.ir/article_532_d7146e897d131d065c2f8a1b8a8edf6d.pdf |
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