Numerical study on discharge capacity of piano key side weir with various ratios of the crest length to the width
A side or lateral weir can be defined as a longitudinal weir put in parallel to the main flow direction. A piano key side weir (PKSW) is one of the various side weirs used to control flow level, flow diversion, and flood harm prevention in dams and hydraulic systems. A side weir aims to keep the wat...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2024-02-01
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| Series: | Open Engineering |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/eng-2022-0536 |
| _version_ | 1827353233157259264 |
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| author | Alabedi Hiba Jameel Khassaf Saleh Issa |
| author_facet | Alabedi Hiba Jameel Khassaf Saleh Issa |
| author_sort | Alabedi Hiba Jameel |
| collection | DOAJ |
| description | A side or lateral weir can be defined as a longitudinal weir put in parallel to the main flow direction. A piano key side weir (PKSW) is one of the various side weirs used to control flow level, flow diversion, and flood harm prevention in dams and hydraulic systems. A side weir aims to keep the water level in the main channel at a specific level by discharging the overflow water into a side channel. The discharge coefficient of the PKSW was covered in this study by numerical modeling of a rectangular PKSW type B with various ratios of the crest length to the width in a straight channel. Results showed that the discharge coefficient of the PKSW was more affected by the L/W parameter when the other parameters were constant. It was noted that the PKSW discharge coefficient for L/W equal to 6 demonstrated a significantly higher level of performance and also found that increasing the upstream head above the side weir crest (h
a/P) negatively affected the coefficient of discharge. It was concluded that a high capacity of the discharge coefficient required the (h
a/P) ratio to be smaller than 0.75 or within the range (0.3 ≤ h
a/P < 0.75). |
| first_indexed | 2024-03-08T03:22:03Z |
| format | Article |
| id | doaj.art-d6db6dd46fe4428aaec2e97555aa726c |
| institution | Directory Open Access Journal |
| issn | 2391-5439 |
| language | English |
| last_indexed | 2024-03-08T03:22:03Z |
| publishDate | 2024-02-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Open Engineering |
| spelling | doaj.art-d6db6dd46fe4428aaec2e97555aa726c2024-02-12T09:12:04ZengDe GruyterOpen Engineering2391-54392024-02-011412465310.1515/eng-2022-0536Numerical study on discharge capacity of piano key side weir with various ratios of the crest length to the widthAlabedi Hiba Jameel0Khassaf Saleh Issa1Department of Civil Engineering, College of Engineering, University of Basrah, Center of Basrah, PO Box 49, Al Basrah, IraqDepartment of Civil Engineering, College of Engineering, University of Basrah, Center of Basrah, PO Box 49, Al Basrah, IraqA side or lateral weir can be defined as a longitudinal weir put in parallel to the main flow direction. A piano key side weir (PKSW) is one of the various side weirs used to control flow level, flow diversion, and flood harm prevention in dams and hydraulic systems. A side weir aims to keep the water level in the main channel at a specific level by discharging the overflow water into a side channel. The discharge coefficient of the PKSW was covered in this study by numerical modeling of a rectangular PKSW type B with various ratios of the crest length to the width in a straight channel. Results showed that the discharge coefficient of the PKSW was more affected by the L/W parameter when the other parameters were constant. It was noted that the PKSW discharge coefficient for L/W equal to 6 demonstrated a significantly higher level of performance and also found that increasing the upstream head above the side weir crest (h a/P) negatively affected the coefficient of discharge. It was concluded that a high capacity of the discharge coefficient required the (h a/P) ratio to be smaller than 0.75 or within the range (0.3 ≤ h a/P < 0.75).https://doi.org/10.1515/eng-2022-0536piano key side weirnumerical modelingthe discharge coefficientflow-3d software |
| spellingShingle | Alabedi Hiba Jameel Khassaf Saleh Issa Numerical study on discharge capacity of piano key side weir with various ratios of the crest length to the width Open Engineering piano key side weir numerical modeling the discharge coefficient flow-3d software |
| title | Numerical study on discharge capacity of piano key side weir with various ratios of the crest length to the width |
| title_full | Numerical study on discharge capacity of piano key side weir with various ratios of the crest length to the width |
| title_fullStr | Numerical study on discharge capacity of piano key side weir with various ratios of the crest length to the width |
| title_full_unstemmed | Numerical study on discharge capacity of piano key side weir with various ratios of the crest length to the width |
| title_short | Numerical study on discharge capacity of piano key side weir with various ratios of the crest length to the width |
| title_sort | numerical study on discharge capacity of piano key side weir with various ratios of the crest length to the width |
| topic | piano key side weir numerical modeling the discharge coefficient flow-3d software |
| url | https://doi.org/10.1515/eng-2022-0536 |
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