Results 61 to 70 of about 300 (179)
Experimental study of hydraulic losses in linear and nonlinear weirs: A comparative analysis
Water ScienceWith increased length of the crest in a certain width range, the labyrinth weirs increase the discharge capacity. In this study, a laboratory flume was used with a length of 8 m and a width and height of 0.6 m, in which the hydraulic loss of linear/non ...
Reza Ghasemi Ghasemvand +3 more
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Numerical Analysis of Flow Hydraulic in Trapezoidal Labyrinths and Piano Key Weirs
علوم آب و خاک, 2020 The flow fields over a trapezoidal labyrinth weir (two-cycle) and a piano key weir were simulated using Flow3D, studying the impact of each model on the flow field in the weirs and the coefficient of discharge in comparison with the available ...
R. Gharibvand +4 more
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A Numerical Investigation on Residual Energy of Labyrinth Weirs
, 2023 The replacement of existing classical weirs with labyrinth weirs is a proven techno-economical solution and a means to increase the discharge capacity when rehabilitating existing structures. However, flows exiting a labyrinth weir are complex, three-dimensional, and aerated; additional information is needed regarding energy dissipated by such weirs ...
Langohr, P. +2 more
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Hydraulic performance of Submerged Flow over Rectangular Labyrinth Weirs with Round Corners
Sulaimani Journal for Engineering SciencesThis experimental study investigates the hydraulic performance of rectangular labyrinth weirs with rounded corners under both free-flow and submerged-flow conditions.
Ahang S. Ali +2 more
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Applied Water Science, 2020 Crest length is an important parameter in influencing the discharge handling capacity of a weir. Nonlinear weirs with longer crests are cost effective alternatives for those existing dam structures which are more susceptible to failure due to loss of ...
Munish Kumar +3 more
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The performance of labyrinth weirs [PDF]
, 1968 The purpose of the labyrinth weir is to increase the discharge per unit length of structure normally obtained from a conventional weir when operating under identical head conditions. This is achieved by compressing a large length of crest in concertina form, into the space available on site.
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UWB Metamaterial-Loaded Antenna for C-Band Applications
International Journal of Antennas and Propagation, 2019 A novel metamaterial-inspired patch antenna is proposed, wherein a 2-segment SRR Labyrinth metamaterial is embedded inside the antenna substrate. It is observed that upon incorporation, the bandwidth widens to around 600% and VSWR improves by approx. 1.5%
Parul Dawar, N. S. Raghava, Asok De
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Laboratory studies into hydraulic coefficient in curved planform labyrinth weir and piano key weir
Građevinar, 2019 In this paper, the discharge coefficient of piano key weirs is compared with that of curved planform labyrinth weirs. Results show that the discharge coefficient of piano key weirs is by 17.1% higher compared to that of curved planform labyrinth weirs ...
Behzad Zeraat +4 more
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Modeling of discharge Coefficient of nonlinear weirs with QNET and SVM methods [PDF]
Journal of Hydraulic StructuresIn this study, we investigate the discharge coefficient prediction of arched labyrinth weirs with a cycle angle of 6 degrees, employing 243 data series.
Mahdi Majedi-Asl +3 more
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A review: Aeration efficiency of hydraulic structures in diffusing DO in water. [PDF]
MethodsX, 2023 Puri D, Sihag P, Thakur MS.
europepmc +1 more source