Results 21 to 30 of about 2,935,970 (296)

Experimental Investigation of the Steady-State Flow Field with Particle Image Velocimetry on a Nozzle Check Valve and Its Dynamic Behaviour on the Pipeline System

open access: yesEnergies, 2022
In the present work, to investigate the hydraulic losses and safe operation of nozzle check valves in industrial piping systems, the static characteristics of the valve and its dynamic behavior in the pipeline system were studied using an experimental ...
Zhengbai Chang, Jin Jiang
doaj   +1 more source

Uncertainty in the determination of soil hydraulic parameters and its influence on the performance of two hydrological models of different complexity [PDF]

open access: yes, 2009
Data of soil hydraulic properties forms often a limiting factor in unsaturated zone modelling, especially at the larger scales. Investigations for the hydraulic characterization of soils are time-consuming and costly, and the accuracy of the results ...
Facchi, A.   +18 more
core   +2 more sources

EVALUATION OF THE WIDELY-USED EQUATIONS OF HYDRAULIC LOSS CALCULATION AND CALIBRATION OF THE HAZEN-WILLIAMS EQUATION IN DRIP IRRIGATION LATERALS [PDF]

open access: yesمهندسی عمران شریف
Hazen-William’s equation is usually used to determine the hydraulic head loss when designing drip irrigation systems. The mentioned equation is suggested for pipes with diameters greater than 75 mm and flow rates above 2.3 l/s.
Sh. Shafaei   +4 more
doaj   +1 more source

Thermodynamic Analysis of Binary and Trinary Power Cycles Fueled with Methane–Hydrogen Blends

open access: yesInventions, 2022
The development of hydrogen energetics is a possible way to reduce emissions of harmful substances into the atmosphere in the production of electricity.
Vladimir Kindra   +4 more
doaj   +1 more source

A note on Chow's description of the weak hydraulic jump [PDF]

open access: yes, 2008
Standard analytical and empirical results of hydraulic jumps are reanalyzed. The assumption that momentum but not energy is conserved across a jump is abandoned.
Sander, Graham   +6 more
core   +1 more source

Loss or head in hydraulics [PDF]

open access: yesJournal of the Franklin Institute, 1887
n ...
openaire   +1 more source

Spatiotemporal variations and driving factors of reference evapotranspiration in the Yiluo river basin

open access: yesFrontiers in Earth Science, 2023
The variations in the reference evapotranspiration (ET0) are closely related to meteorological factors. The purpose of this study is to explore the relationships between the meteorological factors and the ET0.
Li Yizhe   +7 more
doaj   +1 more source

METHODOLOGY FOR DETERMINING HYDRAULIC AND MECHANICAL LOSSES OF HYDRAULIC TRANSMISSION

open access: yesBulletin of the National Technical University «KhPI» Series: Engineering and CAD
The article addresses current issues related to improving the efficiency and accuracy of evaluating the energy characteristics of transmission systems in tracked military vehicles. Modern trends in the development of armored vehicles lead to increased requirements for controllability, reliability, and energy efficiency, which limits the capabilities of
Ievgenii Veretennikov, Oleksii Dudka
openaire   +3 more sources

Influence of Outlet Conduit Parameters on the Performance of Shaft Tubular Pump

open access: yesGuan'gai paishui xuebao, 2021
【Objective】 Hydraulic loss is a great concern in designing hydraulic apparatus and the objective of this paper is to investigate how to reduce it in the outlet conduit so as to improve the performance of shaft tubular pump.
XU Lei   +6 more
doaj   +1 more source

Effect of different screen areas on the submerged hydraulic jump characteristics [PDF]

open access: yesPort Said Engineering Research Journal, 2022
The hydraulic jump is a natural phenomenon occurs in steep waterways and behind the heading up structures. The main benefit of the hydraulic jump is dissipating the excessive kinetic energy. Tools such as sill, baffle blocks… etc.
Osama Saleh   +2 more
doaj   +1 more source

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