Location of inception point of alternating steps stepped spillways
This study explored the effects of flat-stepped spillways having alternating steps on the inception point location. Two wooden stepped spillways with a longitudinal slope of 26.6° were constructed in a rectangular flume and tested at various discharges, ranging from 0.003 to 0.05 m3/s. Each model ha...
| Main Authors: | , |
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| Format: | Article |
| Language: | Arabic |
| Published: |
University of Sulaimania
2023-08-01
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| Series: | Sulaimani Journal for Engineering Sciences |
| Subjects: | |
| Online Access: | https://sites.google.com/a/univsul.edu.iq/sjes/issues/vol10no1/sjes-10166 |
| _version_ | 1827813905645174784 |
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| author | Burhan S. Muhammed1 Kawa Z. Abdulrahman2 |
| author_facet | Burhan S. Muhammed1 Kawa Z. Abdulrahman2 |
| author_sort | Burhan S. Muhammed1 |
| collection | DOAJ |
| description | This study explored the effects of flat-stepped spillways having alternating steps on the inception point location. Two wooden stepped spillways with a longitudinal slope of 26.6° were constructed in a rectangular flume and tested at various discharges, ranging from 0.003 to 0.05 m3/s. Each model had twenty-seven steps, and the channel's width, depth, and length were 0.605 meters, 1.35 meters, and 8 meters. The outcomes showed that the Alternating Model (MA), compared to the Regular Model (MR), has shortened the inception point distance (Li) from the downstream crest of the spillway by an average of 27% (e.g., the Li of the MR model was 59 cm, and the Li of the MA model was 43 cm). The MA model's skimming flow was discovered to begin at higher discharges, at yc/h 1.24 (as opposed to yc/h=0.98 for the MR model). Two equations were also developed to compute the inception point positions for flows over the MA and MR stepped spillways. |
| first_indexed | 2024-03-11T23:38:17Z |
| format | Article |
| id | doaj.art-aa4a44b8f2574325a076c066736ebb8d |
| institution | Directory Open Access Journal |
| issn | 2410-1699 2415-6655 |
| language | Arabic |
| last_indexed | 2024-03-11T23:38:17Z |
| publishDate | 2023-08-01 |
| publisher | University of Sulaimania |
| record_format | Article |
| series | Sulaimani Journal for Engineering Sciences |
| spelling | doaj.art-aa4a44b8f2574325a076c066736ebb8d2023-09-19T18:23:10ZaraUniversity of SulaimaniaSulaimani Journal for Engineering Sciences2410-16992415-66552023-08-01101495710.17656/sjes.10166Location of inception point of alternating steps stepped spillwaysBurhan S. Muhammed10Kawa Z. Abdulrahman21University of Sulaimani, College of Engineering, Department of Water Resources EngineeringUniversity of Sulaimani, College of Engineering, Department of Water Resources EngineeringThis study explored the effects of flat-stepped spillways having alternating steps on the inception point location. Two wooden stepped spillways with a longitudinal slope of 26.6° were constructed in a rectangular flume and tested at various discharges, ranging from 0.003 to 0.05 m3/s. Each model had twenty-seven steps, and the channel's width, depth, and length were 0.605 meters, 1.35 meters, and 8 meters. The outcomes showed that the Alternating Model (MA), compared to the Regular Model (MR), has shortened the inception point distance (Li) from the downstream crest of the spillway by an average of 27% (e.g., the Li of the MR model was 59 cm, and the Li of the MA model was 43 cm). The MA model's skimming flow was discovered to begin at higher discharges, at yc/h 1.24 (as opposed to yc/h=0.98 for the MR model). Two equations were also developed to compute the inception point positions for flows over the MA and MR stepped spillways.https://sites.google.com/a/univsul.edu.iq/sjes/issues/vol10no1/sjes-10166stepped spillwayinception pointskimming flowalternating steps. |
| spellingShingle | Burhan S. Muhammed1 Kawa Z. Abdulrahman2 Location of inception point of alternating steps stepped spillways Sulaimani Journal for Engineering Sciences stepped spillway inception point skimming flow alternating steps. |
| title | Location of inception point of alternating steps stepped spillways |
| title_full | Location of inception point of alternating steps stepped spillways |
| title_fullStr | Location of inception point of alternating steps stepped spillways |
| title_full_unstemmed | Location of inception point of alternating steps stepped spillways |
| title_short | Location of inception point of alternating steps stepped spillways |
| title_sort | location of inception point of alternating steps stepped spillways |
| topic | stepped spillway inception point skimming flow alternating steps. |
| url | https://sites.google.com/a/univsul.edu.iq/sjes/issues/vol10no1/sjes-10166 |
| work_keys_str_mv | AT burhansmuhammed1 locationofinceptionpointofalternatingstepssteppedspillways AT kawazabdulrahman2 locationofinceptionpointofalternatingstepssteppedspillways |