Results 21 to 30 of about 279,983 (306)

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

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  

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

Training Graduate Students in Utilization of Analytical Instruments in a Failure Analysis Course [PDF]

open access: yes, 2019
Department of Engineering Technology at University of North Texas offers a graduate course on failure analysis (MSET 5150) during spring semesters. Partial requirement for the course is for students to submit a term paper based on their collected data ...
Gamez-Rivas, F.   +4 more
core   +1 more source

Experimental studies of water hammer in propellant feed system of reaction control system

open access: yesPropulsion and Power Research, 2018
Water hammer pressure transient produces large dynamic forces which can damage the pipes and other assemblies in the feed line of a reaction control system (RCS).
Avanish Kumar   +2 more
doaj   +1 more source

WATER HAMMER IN PIPELINE WITH DIFFERENT CHARACTERISTICS OF VALVE CLOSING AND UNSTEADY WALL FRICTION [PDF]

open access: yesCivil Engineering Journal, 2019
This paper presents an analytical investigation of water hammer pressure variation in a reservoir-pipe-valve system. Laplace transform method is used to get the analytical solutions for different characteristics of the valve closing. Specifically, sudden
Haixiao Jing, Wen Wang , Guodong Li
doaj   +1 more source

Numerical comparison of pipe-column-separation models [PDF]

open access: yes, 1994
Results comparing six column-separation numerical models for simulating localized vapor cavities and distributed vaporous cavitation in pipelines are presented.
Angus R. Simpson   +5 more
core   +1 more source

WATER HAMMER IN WATER DISTRIBUTION SYSTEMS

open access: yesItalian Journal of Engineering Geology and Environment, 2018
L'interesse scientifico verso il fenomeno del colpo d'ariete nasce in Europa agli inizi del 1900 allorquando la società si trova nel pieno di una rivoluzione industriale con una notevole crescita demografica e con la necessità di maggiore potenza elettrica e macchinari industriali.
Frega G., Costanzo C., Frega F.
openaire   +2 more sources

The use of titanium alloys for details of downhole hammers [PDF]

open access: yes, 2016
The influence of cementation technology of titanium alloy Ti-Al-Mn on its wear resistance is studied. It is established that after lubrication a friction pair with mineral oil the wear resistance of the cemented titanium alloy is comparable to wear ...
Alekseev, S. E.   +4 more
core   +1 more source

Dynamic water hammer experiment on supercritical/dense-phase CO2 transportation pipelines

open access: yesYou-qi chuyun
ObjectiveSupercritical/dense-phase CO2 exhibits relatively high density. During pipeline transport, planned or accidental valve closures can induce transient water hammer.
Haonan QIAN   +7 more
doaj   +1 more source

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