Results 11 to 20 of about 278,933 (298)

Research on Valve Optimization and Control Technology for Water Hammer Protection in Long-Distance Pressurized Water Conveyance Systems [PDF]

open access: yesE3S Web of Conferences
In long-distance water transfer projects, changes in operating conditions or accidental power failures can cause changes in the flow regime inside the pipeline, triggering water hammer phenomena.
Hu Yiming, Dong Shen, Lv Mou, Li Hang
doaj   +1 more source

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.
Simpson, A., Wylie, E.
core   +1 more source

ANALISA PENGARUH WATER HAMMER TERHADAP FLEKSIBILITAS PIPA LINE DISCHARGE PUMP

open access: yesSimetris: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer, 2019
Makalah ini mengkaji besarnya tegangan pipa akibat fenomena water hammer. Water hammer terjadi pada proses pendistribusian dari TPL menuju Terminal BBM di Surabaya (jalur pipa discharge pump).
Pekik Mahardhika, Ekky Nur Budiyanto
doaj   +1 more source

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

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

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

Numerical simulations of non-spherical bubble collapse [PDF]

open access: yes, 2009
A high-order accurate shock- and interface-capturing scheme is used to simulate the collapse of a gas bubble in water. In order to better understand the damage caused by collapsing bubbles, the dynamics of the shock-induced and Rayleigh collapse of a ...
Colonius, Tim, Johnsen, Eric
core   +1 more source

Experimental study on dynamic pipe fracture in consideration of hydropower plant model

open access: yesWater Science and Engineering, 2009
In the case of sudden valve closure, water hammer creates the most powerful pressure and damage to pipeline systems. The best way to protect the pipeline system is to eliminate water hammer. The main reasons for water hammer occurrence are valve closure,
Kazumi Ishikawa   +4 more
doaj   +1 more source

Protective Design of Water Hammer for Pumping Stations

open access: yesGuan'gai paishui xuebao, 2021
【Background and Objective】 Long-distance water conveyance is common in countries with uneven water distribution like China. Resolving water hammer is an issue faced in water-conveyance projects. The purpose of this paper is to investigate the feasibility
WU Xumin   +4 more
doaj   +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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