نتایج جستجو برای: circular crested weirs

تعداد نتایج: 69461  

Journal: :Water Science & Technology: Water Supply 2023

Abstract The attention of researchers and engineers has been attracted to gabion weirs due their environmental, hydraulic, stability capabilities compared with solid weirs. One the possible problems is partial blockage caused by sedimentation upstream them. This research experiment investigates hydraulic performance broad-crested (GBCWs) an blockage. For this purpose, a total 147 experiments we...

Journal: :Soft Computing 2022

Labyrinth weirs are utilized to transport a greater discharge during floods in contrast conventional due their increased weir crest length. Nevertheless, the geometric complexity of labyrinth weirs, determination accurate coefficients and accordingly, head-discharge ratings quite essential issues practical application. Hence, as first step present study proposes following eight standalone algor...

ژورنال: علوم آب و خاک 2009
ایزدی نیا, الهام, حیدرپور, منوچهر, کبیری سامانی, عبدالرضا,

In this study, the flow characteristics have been investigated by measuring separation zone, surface and velocity profiles over the circular crested side weirs. An equation was proposed for the length of the separation zone using dimensional, statistical and regression analysis. The dimensional analysis showed that the length of separation zone depends on the upstream to the downstream water de...

ایزدی نیا, الهام, حیدرپور, منوچهر, کبیری سامانی, عبدالرضا,

In this study, the flow characteristics have been investigated by measuring separation zone, surface and velocity profiles over the circular crested side weirs. An equation was proposed for the length of the separation zone using dimensional, statistical and regression analysis. The dimensional analysis showed that the length of separation zone depends on the upstream to the downstream water de...

Journal: :Water Science & Technology: Water Supply 2021

Abstract Present study highlights the behavior of weir crest head and width parameter on discharge coefficient a compound broad crested (CBC) weir. Computational fluid dynamics model (CFD) is validated with laboratory experimental investigations. In analysis through weirs, upstream over (h) crucial, where result mainly dependent upon length (L) in transverse direction to flow, water depth from ...

Journal: :Water 2021

In this contribution, different 3D numerical approaches are applied in order to simulate the behaviour of turbulent flow through a rectangular channel with broad-crested weirs. addition, water velocities, using Acoustic Doppler Velocimetry (ADV) instrumentation, were recorded. Two turbulence quantities estimated laboratory records and compared those computed Large Eddy Simulation (LES) Reynolds...

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