Results 151 to 160 of about 146,612 (216)

A novel approach for estimation of discharge coefficient in broad-crested weirs based on Harris Hawks Optimization algorithm

, 2021
Accurate determination of the discharge coefficient play a very important role in estimating the flow discharge over the weirs. As a result, it is significant to estimate the discharge coefficient correctly.
B. Nourani, H. Arvanaghi, F. Salmasi
semanticscholar   +1 more source

Experimental and numerical studies for estimating coefficient of discharge of side compound weir

Canadian journal of civil engineering (Print), 2019
A sharp-crested side compound weir is a flow diversion structure provided on one or both side walls of a channel to divert water from the main channel. Compound sharp-crested weirs are widely used in irrigation, hydraulics, and environmental engineering.
M. A. Ansari, A. Hussain, Ali Shariq, F. Alam   +3 more
semanticscholar   +1 more source

Prediction of discharge coefficient of combined weir-gate using ANN, ANFIS and SVM

International Journal of Hydrology Science and Technology, 2019
Flow measurement is an important issue for developing the water conservation projects and evaluating the performance of irrigation and drainage networks. Weirs and gates are the most common structures which have been widely used for flow measurement. The
A. Parsaie, A. Haghiabi, S. Emamgholizadeh, H. Azamathulla   +3 more
semanticscholar   +1 more source

An Investigation On the Discharge Coefficient of Compound Orifices in Rotating Disks

Journal of Engineering For Gas Turbines and Power, 2021
In the modern multi-shaft gas turbine engines, orifice is an important throttling element and the discharge coefficient of rotating orifices may vary considerably depending on the operating conditions, the geometry and surrounding environment.
Jiaxi Yan, Junkui Mao, Song Wei, Zhaolin Sun, Ranran Tian   +4 more
semanticscholar   +1 more source

Determining the discharge coefficient of a spool valve

Proceedings of the 2000 American Control Conference. ACC (IEEE Cat. No.00CH36334), 2000
Various mathematical models and experimental methods have been developed for finding the effective orifice area in spool valves. The orifice equation for turbulent flow is often applied to spool valves to determine the volumetric flow rate of the fluid passing through the spool valve.
Eric N. Viall, Qin Zhang
openaire   +1 more source

Bed Load Discharge Coefficient

Journal of the Hydraulics Division, 1981
Using dimensional analysis, the bed-load discharge coefficient for the case of two-dimensional flow over dunes is expressed in terms of bed-form geometry and the sand size of the bed material. Experiments are conducted in a rectangular flume using artifical dunes and a flow visualization method to measure the flow separation length from which the bed ...
Peter Engel, Y. Lam Lau
openaire   +1 more source

The Effect of Rotation of Discharge Hole on the Discharge Coefficient and Pressure Coefficient

Transactions of the Korean Society of Mechanical Engineers B, 2003
Pressure coefficient in rotating discharge hole was measured to gain insight into the influence of rotation to the discharge characteristics of rotating discharge hole. Pressure measurements were done by the telemetry system that had been developed by the authors.
openaire   +1 more source

Deep learning under H2O framework: A novel approach for quantitative analysis of discharge coefficient in sluice gates

Journal of Hydroinformatics, 2020
Gates in dams and irrigation canals have been used for the purpose of controlling discharge or water surface regulation. To compute the discharge under a gate, discharge coefficient (Cd) should be first determined precisely.
M. Ghorbani, F. Salmasi, M. Saggi, A. Bhatia, Ercan Kahya, R. Norouzi   +5 more
semanticscholar   +1 more source

Measurement of fundamental discharge coefficients

IEE Colloquium on Advances in HV Technology, 1996
For the quantitative assessment and prediction of insulation discharge properties, one requires knowledge of quite a range of quantities referred to in the title as “discharge coefficients”. Their determination may require a variety of techniques, but one always needs a model of the discharge-preferably a simple one.
openaire   +1 more source

Discharge Coefficients of Fire Nozzles

Journal of Basic Engineering, 1966
The most efficient nozzle is generally considered to be that for which the discharge coefficient is nearest unity. Forms and dimensions of the nozzles being equal, the greater the discharge coefficient, the less the jet turbulence becomes. The inefficiency of fire streams is directly attributable to the inital turbulence of the jet and this turbulence ...
Mitsukiyo Murakami, Kinji Katayama
openaire   +1 more source