Results 1 to 10 of about 10,397 (202)
Applied Water Science, 2019 In general, trapezoidal channels are used in irrigation and drainage networks. When installing a side weir on the side wall of a trapezoidal channel, as excess water reaches the side weir plane, additional flow from the crest of the side weir is driven ...
Hamed Azimi +2 more
doaj +3 more sources
Gene Expression Programming (GEP) to predict coefficient of discharge for oblique side weir
Applied Water Science, 2020 In irrigation and drainage structures, side weir is widely used for flow diversion from main to branch channels. Side weir is also used as a measuring device for discharge measurements, so discharge coefficient was mainly studied in many previous studies.
Ahmed Y. Mohammed, Ali Sharifi
doaj +3 more sources
Discharge coefficient for trapezoidal side weir
Alexandria Engineering Journal, 2015 The designed length of the rectangular side weirs sometimes becomes too long that makes it non-practical from the engineering point of view. In order to decrease the length of channel opening with the desired water height, this study focuses on applying ...
Farzaneh Nezami +2 more
doaj +2 more sources
Numerical evaluation of turbulent flow in a circular conduit along a side weir
Applied Water Science, 2019 Side weir is used as a slot in the side wall of the main channel to direct excess water that is above the weir crest. Such structures are used in control of flow level in irrigation, drainage networks and urban sewage disposal systems.
Meysam Bagherifar +4 more
doaj +2 more sources
Applied Water Science, 2019 Side weirs are utilized to regulate water surface and to control discharge and water elevation in rivers and channels. Here, the discharge coefficient for trapezoidal sharp-crested side weirs (TSCSW) and their affecting parameters are numerically ...
Amir Ghaderi +3 more
doaj +2 more sources
Numerical analysis of flow over side weir
Journal of King Saud University: Engineering Sciences, 2015 In the present work the alternative concept of an elementary discharge coefficient along the longitudinal side weir was studied using an oblique weir. Five different angles (30o, 45o, 60o, 75o, and 90o) in the flow direction (inclined to the left) with ...
Ahmed Y. Mohammed
doaj +2 more sources
Clear Water Scour around at a Piano Key Side Weir of the Type A at 120° Section of a 180° Curved Channel [PDF]
پژوهشهای زیرساختهای عمرانی, 2022 A side weir is a hydraulic control structure used in irrigation and drainage systems and combined sewer systems. The Piano Key Weir (PKW) is a new type of long crest weirs that have a relatively simple structure and high economic efficiency structures ...
Mehdi Jamshidi +3 more
doaj +1 more source
Application of numerical model in determining the discharge coefficient containing suspended sediments passing through side weirs [PDF]
Journal of Hydraulic Structures, 2021 Side weirs are one of the most common water structures that are used to transfer or pass flood and excess water from headwater to downstream in channels and dams.
Mousa Rasaei, Amirreza Salemian
doaj +1 more source
Side Weir Flow on a Movable Bed [PDF]
Journal of Hydraulic Engineering, 2016 AbstractSide weirs are hydraulic structures widely used for flow control in rivers and canals. Whenever the water level rises above the side weir crest elevation, a fraction of the main flow is diverted so that the water discharge flowing downstream in the main channel is reduced.
MICHELAZZO, GIOVANNI +3 more
openaire +2 more sources
Calculating Water Flow Rate with Measurement Errors of the Weir Considered
Guan'gai paishui xuebao, 2022 【Objective】 Weir is a classical apparatus measuring water flow rate in open channels. Its accuracy and the formula used to calculate flow rate depend on many factors.
JIAO Xuan +3 more
doaj +1 more source