Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Mahmood Shafai-Bejestan"'
Publikováno v:
علوم و مهندسی آبیاری, Vol 35, Iss 3, Pp 47-57 (2012)
The present study has been conducted in a 90 degrees sharp bend to investigate the effect of bank roughness on flow patterns. Tests conducted under two different flow conditions, with Froude numbers equal to 0.17 and 0.4 and two different roughness s
Externí odkaz:
https://doaj.org/article/68da86b20dfe46fea1d19466025aa131
Publikováno v:
Ain Shams Engineering Journal, Vol 15, Iss 9, Pp 102961- (2024)
The position and depth of a scour hole around a bridge abutment are the important design parameters. The existing models have been mostly developed for steady flows, whereas real-life abutments often fail due to intrinsically unsteady flood streams.
Externí odkaz:
https://doaj.org/article/eb4e76ddf9004e8d8e5bc74f10030c85
Publikováno v:
Journal of Hydraulic Structures, Vol 9, Iss 4, Pp 35-52 (2024)
Blockages in water supply systems can arise from diverse causes, leading to pollution, energy loss, and reduced system performance. Detecting and addressing these blockages is crucial for managing pressurized systems like water supply and pipe networ
Externí odkaz:
https://doaj.org/article/b3722ae159de4954b9bb4ed7b18c67e3
Autor:
Mehdi Zeinivand, Seied Mohsen Sajadi, Mosaieb Haghighi Nejad, Seyed Amin Asghari Pari, Mahmood Shafai Bejestan
Publikováno v:
مهندسی منابع آب, Vol 16, Iss 57, Pp 19-30 (2023)
AbstractIntroduction: Hydraulic jump is created at the end of shoots and many hydraulic structures. The occurrence of a hydraulic jump phenomenon leads to a decrease in the amount of energy in open channels. In the present study, in order to simultan
Externí odkaz:
https://doaj.org/article/8687f6f9db304df8a813ea0f10d921c6
Publikováno v:
Water Supply, Vol 23, Iss 7, Pp 2638-2648 (2023)
The attention of researchers and engineers has been attracted to gabion weirs due to their environmental, hydraulic, and stability capabilities compared with solid weirs. One of the possible problems of the weirs is the partial blockage caused by sed
Externí odkaz:
https://doaj.org/article/e0a97656794e45aeb8e793063583e03f
Publikováno v:
Water Supply, Vol 22, Iss 4, Pp 4594-4605 (2022)
Illegal connection (IC) in water supply systems and water network wastes water as well as energy and reduces water quality, which has negative technical and economic effects on water management. Transient-based defect detection is a powerful method a
Externí odkaz:
https://doaj.org/article/9f2cab679cd54715a5f5a5a1fc945e1a
Publikováno v:
Water Supply, Vol 21, Iss 7, Pp 3860-3874 (2021)
Leakage in transmission pipelines and water distribution networks causes water and energy loss and reduces water quality. The accuracy of leakage detection using transient-based methods depends on several factors. This study investigated the sensitiv
Externí odkaz:
https://doaj.org/article/41cab22055ba4b9196a5832ef3bf508c
Publikováno v:
Ain Shams Engineering Journal, Vol 12, Iss 2, Pp 1385-1397 (2021)
The transport of pollutants in the large rivers especially in the lowest downstream reach of a river, in which the velocity and the intensity of flow turbulent become very low, is performed to a great extent by dispersion. Any measure to enhance the
Externí odkaz:
https://doaj.org/article/26cd32dd96d044bdb91dd7aaa6b133a2
Publikováno v:
Ain Shams Engineering Journal, Vol 12, Iss 1, Pp 317-326 (2021)
This study intended to investigate the hydraulic performance of the new types of LOPAC gates, namely the elliptical LOPAC (EL) gate, and the rectangular LOPAC (RL) gate for irrigation canals. To that end, 90 experiments were carried out at three diff
Externí odkaz:
https://doaj.org/article/e56690e5daa74694b3dbae7a10e234d5
Autor:
Mahmood Shafai Bejestan, Mohsen Dorosti, Farshid Amirsalari Meymani, Mohammad Bahrami Yarahmadi
Publikováno v:
Journal of the Chinese Institute of Engineers. 46:389-398
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6201cd9992c467fafb3b6270509463b4
https://doi.org/10.1080/02533839.2023.2194924
https://doi.org/10.1080/02533839.2023.2194924