Results 31 to 40 of about 5,405,617 (335)

Insights into CFD Modelling of Water Hammer

open access: yesWater, 2023
A problem with 1-D water hammer modelling is in the application of accurate unsteady friction. Moreover, investigating the time response of fluid dynamics and unsteady turbulence structures during the water hammer is not possible with a 1-D model. This review article provides a summary of 1-D modelling using the recent finite volume approach and the ...
M. R. Ajith Kumar   +3 more
openaire   +3 more sources

A Comparison of Different Methods for Modelling Water Hammer Valve Closure with CFD

open access: yes, 2023
Water hammer is a transient phenomenon that occurs when a flowing fluid is rapidly decelerated, which can be harmful and damaging to a piping system. Three-dimensional computational fluid dynamics (CFD) with three-dimensional geometry is a common tool ...
Mehrdad Kalantar Neyestanaki   +11 more
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

Implementation and evaluation of water hammer software in flow problems in irrigation networks

open access: yes, 2014
Water Hammer is an ordinary phenomenon in irrigation networks, causing damages to pipelines, pipes’ junctions and equipment, the effects of which can often be immeasurable.
Ioannidou, Vasiliki G.   +1 more
core   +2 more sources

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

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

Water Hammer Control Analysis of an Intelligent Surge Tank with Spring Self-Adaptive Auxiliary Control System

open access: yesEnergies, 2019
The water hammer can cause great risks in water supply pipe systems. A surge tank is a kind of general water hammer control device. In order to improve the behavior of the surge tank, a self-adaptive auxiliary control (SAC) system was proposed in this ...
Wuyi Wan   +3 more
doaj   +1 more source

Prevention of water hammer and cavitational hammer in pipeline systems

open access: yes, 2022
S.888-890Damages in pipeline systems are often ascribed to water hammer and cavitational hammer. The resulting leakage can cause considerable damages to mankind and environment.
Fahlenkamp, H.   +4 more
core   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Validation results of water hammer calculation method effectiveness.

open access: yes, 2023
Validation results of water hammer calculation method effectiveness.
Qingbiao Zhan (17712007)   +1 more
core   +1 more source

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