Results 21 to 30 of about 5,405,617 (335)

Large water-hammer pressure for column separation in pipelines [PDF]

open access: yes, 1991
Water-hammer pressures in a pipeline due to the collapse of a vapor cavity adjacent to a valve are investigated. A water-hammer event is initiated by the closure of a valve in a simple reservoir-pipeline-valve system.
Wylie, E., Simpson, A.
core   +1 more source

Monitoring water hammer by capacitance tomography

open access: yes, 1996
Water hammer phenomena are well known. Usually analytical methods are used to understand water hammer transient processes with limited success when cavitation occurs.
Yang, W.Q.; id_orcid   +3 more
core   +8 more sources

Wellbore annulus water hammer pressure prediction based on transient multi-phase flow characteristics

open access: yesOil & Gas Science and Technology, 2019
Water hammer pressure has been known to cause formation fracture and well-control problems. Accurate prediction of water hammer pressure is crucially important to determine the selection of shut-in methods. In this study, the mathematic model of wellbore
Fu Jianhong   +4 more
doaj   +1 more source

Water Hammer

open access: yesJournal of Advanced College of Engineering and Management, 2023
Dynamic Pressure rise or fall in all kinds of pipelines due to the operation of the valve which are transmitting fluids are very much essential part to consider in the design of pipeline. This paper presents how to calculate these dynamic pressure waves while designing pipelines.
openaire   +2 more sources

Calculation Method and Prediction Simulation of Transient Flow in Viscoelastic Pipeline [PDF]

open access: yes长江科学院院报
[Objective] The water hammer pressure in pipeline systems is a key factor that endangers the safe and stable operation of the system. Especially for the viscoelastic pipes, their time-dependent mechanical behavior makes the analysis and calculation of ...
ZHANG Xiao-ying, LEI Ling-tong, WANG Yi-song, WANG Chao
doaj   +1 more source

Effects of multiple factors on water hammer induced by a large flow directional valve [PDF]

open access: yes, 2018
© 2018 Journal of Mechanical Engineering. All rights reserved. The flow gain of the large flow poppet directional valve presently used on hydraulic-powered support is large, so water hammer occurs easily when the poppet valve closes.
Yuan, H   +4 more
core   +1 more source

Water hammer research in networks / Hidraulinio smūgio tyrimai tinkluose

open access: yesMokslas: Lietuvos Ateitis, 2015
Formation of water hammer, its consequences and possible protection measures are rarely topics, however the problem is significant. Water hammer can form in water supply and pressurized sewage networks, for various reasons.
Anželika Jurkienė, Mindaugas Rimeika
doaj   +1 more source

Methods to Protect Gravity Flow Pipeline in Hilly Area Affected by Water Hammer

open access: yesGuan'gai paishui xuebao, 2023
【Background and Objective】 Gravity-driven pipelines have low impact on geological environment, low leakage, simple construction and low operation cost. They have been widely used in irrigation and water supply projects.
SHI Xiaowu   +3 more
doaj   +1 more source

Breakdowns caused by water hammer

open access: yes, 2023
The goal of this bachelors thesis is to explain how water hammer occurs, listing often used protective devices that help mitigate this event and research of accidents caused by water hammer.
Kuřátko, Jiří
core   +1 more source

Calculation of the hydraulic stroke in the Mlečva MHPP pipeline caused by sudden closing of the closer [PDF]

open access: yesTehnika, 2018
Water hammer is a pressure surge phenomenon that occurs in pressurised pipelines as a result of a change of the flow velocity. This paper presents analyses of water hammer in the pipeline of mini-hydro power plant (MPP) Mlečva in Bratunac, Republika ...
Praštalo Petar R.
doaj  

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