Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Mohammad Bahrami Yarahmadi"'
Publikováno v:
Ain Shams Engineering Journal, Vol 13, Iss 3, Pp 101598- (2022)
Numerous bridges around the world have been destroyed due to local scour around their piers and abutments. Transverse standing waves (perpendicular to the flow direction) generated by obstacles, such as bridge piers, can affect the extent of local sc
Externí odkaz:
https://doaj.org/article/0639a08fa73f45529e4075c31071b7f1
Publikováno v:
علوم و مهندسی آبیاری, Vol 43, Iss 4, Pp 117-128 (2020)
Water and other fluid pipes that are placed on the seabed and rivers bed change the flow pattern around them. These changes increase the shear stress of the bed and the severity of turbulence around the pipe and create a scouring hole under the pipe.
Externí odkaz:
https://doaj.org/article/ba6ba0c019104d80986b82b9938e3a29
Publikováno v:
علوم و مهندسی آبیاری, Vol 42, Iss 2, Pp 215-230 (2019)
To control scour, it is first necessary to examine the scouring mechanism and the flow patterns around the abutment. By constructing of the abutment, the approaching flow pattern around it is disturbed. In addition, this brings about an increase in t
Externí odkaz:
https://doaj.org/article/794e3e3cff044fa69339a55473faa119
Autor:
Pardis Badri, Mahmoud Shafaei Bejestan, Seyed Mahmoud Kashefi Pour, Mohammad Bahrami Yarahmadi
Publikováno v:
علوم و مهندسی آبیاری, Vol 39, Iss 1, Pp 45-54 (2016)
In the present paper the Triangular Shape Vane (TSV) attached to the bank of a flume bend for the purpose of introducing a new measure for reducing bank erosion has been experimentally investigated. Tests carried out at 90-degree mild flume with rati
Externí odkaz:
https://doaj.org/article/41a35f8bc79a4372b9afe81e76d0aa42
Publikováno v:
علوم و مهندسی آبیاری, Vol 38, Iss 3, Pp 37-49 (2015)
Triangular weirs (Triangular vanes) and footing are measures which causes to control the scour in outer bend and keep out scouring hole from the outer bend. In this study, the main purpose is to experimentally study the effect of using both footing a
Externí odkaz:
https://doaj.org/article/fd498d3da6e34fdfa76158a3a77dd6fa
Autor:
Mahmood Shafai Bejestan, Mohsen Dorosti, Farshid Amirsalari Meymani, Mohammad Bahrami Yarahmadi
Publikováno v:
Journal of the Chinese Institute of Engineers. 46:389-398
Publikováno v:
Canadian Journal of Civil Engineering. 49:1842-1854
Local scour around abutments is one of the most important reasons for a bridge collapse, making it a major concern for hydraulic and river engineers. Available studies on scour control around abutments have been limited to steady flow conditions. In
Autor:
Mohammad Bahrami Yarahmadi, Abbas Parsaie, Mahmood Shafai-Bejestan, Mostafa Heydari, Marzieh Badzanchin
Publikováno v:
Water Resources Management.
The bed surface of alluvial rivers is rarely plane and takes different geometric configurations called bed forms. Bed forms are created by the movement of riverbed sediments, especially during floods. The interaction between the flow and bed form is
Publikováno v:
Iranian Journal of Science and Technology, Transactions of Civil Engineering.
River outer bank erosion and associated inner bank sedimentation cause river morphological and environmental changes. Triangular vanes are eco-friendly structures used for protection of river bank from erosion and morphological changes, fish passage
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c42e16f34efb752ccbb90eac84f748e
http://hdl.handle.net/11568/1079646
http://hdl.handle.net/11568/1079646