Estimation of Cavitation Limits From Local Head Loss Coefficient [PDF]
Journal of Fluids Engineering, Transactions of the ASME, 2008 Cavitation effects in valves and other sudden transitions in water distribution systems are studied as their better understanding and quantification is needed for design and analysis purposes and for predicting and controlling their operation.
Raúl Sanchez, Luis Juana
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Local head loss monitoring using acoustic instrumentation in partially full sewer pipes [PDF]
Water Science and Technology, 2012 After an increase in capital investment in UK sewers to reduce hydraulic capacity problems, the proportion of sewer flooding incidents now linked to blockages has increased. It is clear that if sewer operators are to continue to reduce flooding incidents,
Kirill V Horoshenkov
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Iterative calculation of local head loss coefficient of emitters in lateral lines [PDF]
Revista Brasileira de Engenharia Agrícola e Ambiental, 2021 This study aimed to iteratively set the local head loss coefficient of the Naan® micro-sprinkler, model 7110 Hadar, installed in a lateral irrigation line.
Giuliani Prado +4 more
doaj +6 more sources
Local head loss caused in connections used in micro-irrigation systems [PDF]
Revista Brasileira de Engenharia Agrícola e Ambiental, 2019 Information about local head loss caused by connections employed in micro-irrigation systems is hard to be found in literature. The objective of this research was to experimentally determine the local head losses in connections commonly used in micro ...
Wagner W. Á. Bombardelli +4 more
doaj +3 more sources
Spanish Journal of Agricultural Research, 2021 Aim of study: To investigate how the cross section of a drip-irrigation tape affects local head loss. Area of study: The work was carried out in the laboratory of Irrigation hydraulics, College of Water Conservancy and Environment, Three Gorges ...
Yalin Wang +3 more
doaj +4 more sources
Effect of allowable flow-rate variation and local head loss on maximum length of non-pressure compensated drip tape [PDF]
Revista Ambiente & Água, 2021 A challenge for the design of drip irrigation systems with non-pressure compensated emitters is to increase the maximum length of the lateral lines without significantly reducing water application uniformity.
Luiz Antonio de Andrade +4 more
doaj +6 more sources
A Fast Calculation Model for Local Head Loss of Non-Darcian Flow in Flexural Crack [PDF]
Water (Switzerland), 2020 Local head loss caused by fracture intersection is often ignored because there has not been a simple method to calculate it until now. Relevant research shows that neglecting the local flow resistance leads to inaccurate results, especially when the velocity and cross angle are large. Therefore, it is necessary to find a portable method for calculation.
Kai Song
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Perda de carga localizada em emissores não coaxiais integrados a tubos de polietileno Local head loss for uncoaxial drippers inserted in polyethylene pipes [PDF]
Engenharia Agrícola, 2009 Este trabalho apresenta os resultados de experimento conduzido para avaliar as perdas de carga localizadas em gotejados não coaxiais integrados a tubos de polietileno.
Osvaldo Rettore Neto +3 more
doaj +4 more sources
Local Head-Loss Coefficient at the Rectangular Transition from a Free-Surface Channel to a Conduit
Journal of Hydraulic Engineering, 2013 AbstractExperimental tests have been performed to observe and determine, in stationary flow conditions, the local head loss at the transition from a free-surface channel to a conduit. These investigations considered a wide range of discharge and varied dimensions and positions of a rectangular cross-sectional conduit connected to the downstream ...
Pierre Archambeau +2 more
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Simulation of flow and transport in a single fracture: Macroscopic effects of underestimating local head loss [PDF]
Geophysical Research Letters, 2001 Fluid flow in a single fracture is commonly simulated using the Reynolds equation. Recent work suggests that this depth‐averaged approach underestimates head loss in regions of changing aperture. Implementing an ad hoc correction in the numerical formulation of the Reynolds equation allows us to modify local head loss, and calibrate simulation results ...
Michael J Nicholl, Russell L Detwiler
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