Scour downstream of a corrugated apron under wall jets
Experiments were performed over smooth and corrugated aprons with different corrugation dimensions to study the scour and flow characteristics under submerged wall jets condition. The scour depth and length are significantly lower for corrugated than smooth rigid aprons. The maximum reductions in sc...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
IWA Publishing
2022-01-01
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| Series: | Water Practice and Technology |
| Subjects: | |
| Online Access: | http://wpt.iwaponline.com/content/17/1/204 |
| _version_ | 1818140496517660672 |
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| author | Rakesh Kumar Chaudhary Zulfequar Ahmad Surendra Kumar Mishra |
| author_facet | Rakesh Kumar Chaudhary Zulfequar Ahmad Surendra Kumar Mishra |
| author_sort | Rakesh Kumar Chaudhary |
| collection | DOAJ |
| description | Experiments were performed over smooth and corrugated aprons with different corrugation dimensions to study the scour and flow characteristics under submerged wall jets condition. The scour depth and length are significantly lower for corrugated than smooth rigid aprons. The maximum reductions in scour depth and length are 79 and 83%, respectively. Optimum scour depth and length are found for aspect ratio (ratio of corrugation wave length to amplitude) three for corrugated apron. The factors affecting scour depth and length were analyzed graphically, and empirical equations are proposed for predicting maximum scour depth and length, and the point of maximum scour depth for corrugated aprons. Velocity, turbulence characteristics, and Reynolds stress in scour holes for smooth and corrugated aprons were also studied. HIGHLIGHT
This paper presents the scour downstream of a corrugated apron and flow characteristics under submerged wall jets. Here, scour depth and length reduces more significantly than for the other apron. In this, we have tried to develop an empirical equation on single size sediment considering all the flow parameters and apron parameters. Besides this, we have also conducted study related to turbulence and shear stress and velocity vector profile.; |
| first_indexed | 2024-12-11T10:44:55Z |
| format | Article |
| id | doaj.art-77e5f33a3d7b4ba995c480607d0241e6 |
| institution | Directory Open Access Journal |
| issn | 1751-231X |
| language | English |
| last_indexed | 2024-12-11T10:44:55Z |
| publishDate | 2022-01-01 |
| publisher | IWA Publishing |
| record_format | Article |
| series | Water Practice and Technology |
| spelling | doaj.art-77e5f33a3d7b4ba995c480607d0241e62022-12-22T01:10:30ZengIWA PublishingWater Practice and Technology1751-231X2022-01-0117120422210.2166/wpt.2021.096096Scour downstream of a corrugated apron under wall jetsRakesh Kumar Chaudhary0Zulfequar Ahmad1Surendra Kumar Mishra2 Department of Water Resources Development and Management, Indian Institute of Technology Roorkee, Roorkee, India Department of Civil Engineering, Indian Institute of Technology Roorkee, Roorkee, India Department of Water Resources Development and Management, Indian Institute of Technology Roorkee, Roorkee, India Experiments were performed over smooth and corrugated aprons with different corrugation dimensions to study the scour and flow characteristics under submerged wall jets condition. The scour depth and length are significantly lower for corrugated than smooth rigid aprons. The maximum reductions in scour depth and length are 79 and 83%, respectively. Optimum scour depth and length are found for aspect ratio (ratio of corrugation wave length to amplitude) three for corrugated apron. The factors affecting scour depth and length were analyzed graphically, and empirical equations are proposed for predicting maximum scour depth and length, and the point of maximum scour depth for corrugated aprons. Velocity, turbulence characteristics, and Reynolds stress in scour holes for smooth and corrugated aprons were also studied. HIGHLIGHT This paper presents the scour downstream of a corrugated apron and flow characteristics under submerged wall jets. Here, scour depth and length reduces more significantly than for the other apron. In this, we have tried to develop an empirical equation on single size sediment considering all the flow parameters and apron parameters. Besides this, we have also conducted study related to turbulence and shear stress and velocity vector profile.;http://wpt.iwaponline.com/content/17/1/204corrugated apronreynolds shear stressscourturbulencewall jets |
| spellingShingle | Rakesh Kumar Chaudhary Zulfequar Ahmad Surendra Kumar Mishra Scour downstream of a corrugated apron under wall jets Water Practice and Technology corrugated apron reynolds shear stress scour turbulence wall jets |
| title | Scour downstream of a corrugated apron under wall jets |
| title_full | Scour downstream of a corrugated apron under wall jets |
| title_fullStr | Scour downstream of a corrugated apron under wall jets |
| title_full_unstemmed | Scour downstream of a corrugated apron under wall jets |
| title_short | Scour downstream of a corrugated apron under wall jets |
| title_sort | scour downstream of a corrugated apron under wall jets |
| topic | corrugated apron reynolds shear stress scour turbulence wall jets |
| url | http://wpt.iwaponline.com/content/17/1/204 |
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