EXPERIMENTAL INVESTIGATION OF SCOUR DOWNSTREAM OF A C-TYPE TRAPEZOIDAL PIANO KEY WEIR WITH STILLING BASIN
In recent years, engineers have focused on finding a solution to reduce scouring downstream of piano key weirs. Piano key weirs have high efficiency in flood flow and a higher discharge coefficient. In this research, a type C trapezoidal piano key weir with a type 1 stilling basin was used. Three d...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | Arabic |
| Published: |
Mustansiriyah University/College of Engineering
2023-11-01
|
| Series: | Journal of Engineering and Sustainable Development |
| Subjects: | |
| Online Access: | https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/2083 |
| _version_ | 1797643523920494592 |
|---|---|
| author | Ali Qasim Rdhaiwi Ali Khoshfetrat Amirhossein Fathi |
| author_facet | Ali Qasim Rdhaiwi Ali Khoshfetrat Amirhossein Fathi |
| author_sort | Ali Qasim Rdhaiwi |
| collection | DOAJ |
| description |
In recent years, engineers have focused on finding a solution to reduce scouring downstream of piano key weirs. Piano key weirs have high efficiency in flood flow and a higher discharge coefficient. In this research, a type C trapezoidal piano key weir with a type 1 stilling basin was used. Three discharges and three water depths were also used. The results showed that the existence of the stilling basin reduces scour. In the weir with the stilling basin, the maximum scour depth is reduced and the scouring hole becomes more elongated. The maximum distance of the scouring depth increases compared to the toe of the weir. The maximum scour depth and the maximum scour depth distance in the weirs with the stilling basin are about 63.4% less and 20.4% more, respectively than in the weirs without the stilling basin. Additionally, by increasing the flow rate and decreasing the depth of the downstream flow, the amount of scour increases.
|
| first_indexed | 2024-03-11T14:16:06Z |
| format | Article |
| id | doaj.art-3dd81ac8ef7f45b2a954d213f53a387c |
| institution | Directory Open Access Journal |
| issn | 2520-0917 2520-0925 |
| language | Arabic |
| last_indexed | 2024-03-11T14:16:06Z |
| publishDate | 2023-11-01 |
| publisher | Mustansiriyah University/College of Engineering |
| record_format | Article |
| series | Journal of Engineering and Sustainable Development |
| spelling | doaj.art-3dd81ac8ef7f45b2a954d213f53a387c2023-11-01T05:01:20ZaraMustansiriyah University/College of EngineeringJournal of Engineering and Sustainable Development2520-09172520-09252023-11-0127610.31272/jeasd.27.6.2EXPERIMENTAL INVESTIGATION OF SCOUR DOWNSTREAM OF A C-TYPE TRAPEZOIDAL PIANO KEY WEIR WITH STILLING BASINAli Qasim Rdhaiwi0Ali Khoshfetrat1Amirhossein Fathi2Department of Civil Engineering, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran Department of Civil Engineering, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran Faculty of Civil and Environmental Engineering, Tarbiat Modares University, Tehran, Iran In recent years, engineers have focused on finding a solution to reduce scouring downstream of piano key weirs. Piano key weirs have high efficiency in flood flow and a higher discharge coefficient. In this research, a type C trapezoidal piano key weir with a type 1 stilling basin was used. Three discharges and three water depths were also used. The results showed that the existence of the stilling basin reduces scour. In the weir with the stilling basin, the maximum scour depth is reduced and the scouring hole becomes more elongated. The maximum distance of the scouring depth increases compared to the toe of the weir. The maximum scour depth and the maximum scour depth distance in the weirs with the stilling basin are about 63.4% less and 20.4% more, respectively than in the weirs without the stilling basin. Additionally, by increasing the flow rate and decreasing the depth of the downstream flow, the amount of scour increases. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/2083Piano key weir (PKW)scourscour indexstilling basin |
| spellingShingle | Ali Qasim Rdhaiwi Ali Khoshfetrat Amirhossein Fathi EXPERIMENTAL INVESTIGATION OF SCOUR DOWNSTREAM OF A C-TYPE TRAPEZOIDAL PIANO KEY WEIR WITH STILLING BASIN Journal of Engineering and Sustainable Development Piano key weir (PKW) scour scour index stilling basin |
| title | EXPERIMENTAL INVESTIGATION OF SCOUR DOWNSTREAM OF A C-TYPE TRAPEZOIDAL PIANO KEY WEIR WITH STILLING BASIN |
| title_full | EXPERIMENTAL INVESTIGATION OF SCOUR DOWNSTREAM OF A C-TYPE TRAPEZOIDAL PIANO KEY WEIR WITH STILLING BASIN |
| title_fullStr | EXPERIMENTAL INVESTIGATION OF SCOUR DOWNSTREAM OF A C-TYPE TRAPEZOIDAL PIANO KEY WEIR WITH STILLING BASIN |
| title_full_unstemmed | EXPERIMENTAL INVESTIGATION OF SCOUR DOWNSTREAM OF A C-TYPE TRAPEZOIDAL PIANO KEY WEIR WITH STILLING BASIN |
| title_short | EXPERIMENTAL INVESTIGATION OF SCOUR DOWNSTREAM OF A C-TYPE TRAPEZOIDAL PIANO KEY WEIR WITH STILLING BASIN |
| title_sort | experimental investigation of scour downstream of a c type trapezoidal piano key weir with stilling basin |
| topic | Piano key weir (PKW) scour scour index stilling basin |
| url | https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/2083 |
| work_keys_str_mv | AT aliqasimrdhaiwi experimentalinvestigationofscourdownstreamofactypetrapezoidalpianokeyweirwithstillingbasin AT alikhoshfetrat experimentalinvestigationofscourdownstreamofactypetrapezoidalpianokeyweirwithstillingbasin AT amirhosseinfathi experimentalinvestigationofscourdownstreamofactypetrapezoidalpianokeyweirwithstillingbasin |