Results 11 to 20 of about 1,741,438 (294)

Coefficient of Discharge for Free Flow Sluice Gates

open access: yesJournal of King Saud University: Engineering Sciences, 1999
This paper aims to investigate the effect of sill shape located under the sluice gate on the coefficient of discharge for free gate flow conditions. Both sill shape and sill height are studied. Shapes tested include both polygonal and non polygonal sills.
Abdualaziz A. Alhamid
doaj   +2 more sources

Two-phase discharge flow prediction in safety valves [PDF]

open access: yes, 2012
Safety Relief Valves (SRV) are necessary elements in the protection of any pressurised system and the prediction of the expected discharge flows is an important consideration for the valve sizing to ensure that rupture pressures do not occur.
Elmayyah, Wael, Dempster, William
core   +4 more sources

Experimental Study of Discharge Coefficient of U-Shaped Sluice Gate under Free and Submerged Flow Conditions [PDF]

open access: yesJournal of Hydraulic and Water Engineering, 2023
Sluice gates are among the flow control structures that are used to measure and control the flow in water conveyance channels. In this research, the geometrical and hydraulic parameters affecting the discharge coefficient of the sluice gate (U-shaped ...
F. Dehghani   +2 more
doaj   +1 more source

Discharge coefficient for trapezoidal side weir

open access: yesAlexandria 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   +1 more source

Nozzle geometry variations on the discharge coefficient

open access: yesPropulsion and Power Research, 2016
Numerical works have been conducted to investigate the effect of nozzle geometries on the discharge coefficient. Several contoured converging nozzles with finite radius of curvatures, conically converging nozzles and conical divergent orifices have been ...
M.M.A. Alam   +3 more
doaj   +1 more source

Uncertainty analysis of discharge coefficient of circular crested weirs

open access: yesApplied Water Science, 2021
The circular crested weir (CCW) has been introduced as weirs having a high discharge coefficient (Cd). The ratio of flow head to the radius of the crest (H/R) is the most important parameter affecting the Cd, that the $${\text{Cd}} \approx a\left( {H/R} \
Abbas Parsaie, Amir Hamzeh Haghiabi
doaj   +1 more source

Calculation of Contraction Coefficient under Sluice Gates and Application to Discharge Measurement [PDF]

open access: yes, 2009
The contraction coefficient under sluice gates on flat beds is studied for both free flow and submerged conditions based on the principle of momentum conservation, relying on an analytical determination of the pressure force exerted on the upstream face ...
Belaud, Gilles   +2 more
core   +1 more source

Behavior of the Discharge Coefficient for the Overflow Characteristics of Oblique Circular Weirs

open access: yesTikrit Journal of Engineering Sciences, 2012
This paper presents an experimental study and analysis for effect of the geometrical characteristics, of the oblique cylindrical weir on discharge coefficient, wherefrom three sizes used for the weir and two angles for the deviation. From the results, it
Emad Abdul Gabbar Al Babely
doaj   +3 more sources

Continuous measurements of discharge from a horizontal acoustic Doppler current profiler in a tidal river [PDF]

open access: yes, 2009
Acoustic Doppler current profilers (ADCPs) can be mounted horizontally at a river bank, yielding single-depth horizontal array observations of velocity across the river.
Buschman, F.A.   +2 more
core   +1 more source

Discharge coefficient of combined rectangular-triangular weirs using soft computing models [PDF]

open access: yesJournal of Hydraulic Structures, 2023
This study investigates the potential of Adaptive Neuro-fuzzy inference system (ANFIS), M5P, and Gaussian Process regression (GP) approaches to predict discharge coefficient (Cd) of chimney weir with different apex angles.
Hamidreza Abbaszadeh   +4 more
doaj   +1 more source

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