scholarly journals Simulation of Water Hammer in Viscoelastic Pipes. (Dept. M.)

2020 ◽  
Vol 38 (3) ◽  
pp. 54-65
Author(s):  
Hassan Mansour ◽  
M. Mohamed ◽  
Berge Djebedjian ◽  
Mohamed Tawfik
Keyword(s):  
Water Hammer

An Experimental Study to Predict Dynamic Performance of Check Valve by Water Hammer

2019 ◽  
Vol 19 (1) ◽  
pp. 1-12
Author(s):  
Tae-Kook Park ◽  
Yong-Bum Lee ◽  
Jae-Hyeong Kim ◽  
Ki-Chun Lee ◽  
Dong-Cheon Baek
Keyword(s):  
Experimental Study ◽  
Dynamic Performance ◽  
Check Valve ◽  
Water Hammer

Simulation of water hammer phenomena using the system code ATHLET

Kerntechnik ◽  
2017 ◽  
Vol 82 (3) ◽  
pp. 280-283 ◽  
Author(s):  
C. Bratfisch ◽  
M. K. Koch
Keyword(s):  
Water Hammer

scholarly journals Hydraulic Transients in Viscoelastic Pipeline System with Sudden Cross-Section Changes

Energies ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 4071
Author(s):  
Michał Kubrak ◽  
Agnieszka Malesińska ◽  
Apoloniusz Kodura ◽  
Kamil Urbanowicz ◽  
Michał Stosiak
Keyword(s):  
Numerical Model ◽  
Cross Section ◽  
Laboratory Data ◽  
Experimental Studies ◽  
Distribution Networks ◽  
Water Hammer ◽  
Fluid Distribution ◽  
Pipeline System ◽  
Hydraulic Transients ◽  
Single Pipe

It is well known that the water hammer phenomenon can lead to pipeline system failures. For this reason, there is an increased need for simulation of hydraulic transients. High-density polyethylene (HDPE) pipes are commonly used in various pressurised pipeline systems. Most studies have only focused on water hammer events in a single pipe. However, typical fluid distribution networks are composed of serially connected pipes with various inner diameters. The present paper aims to investigate the influence of sudden cross-section changes in an HDPE pipeline system on pressure oscillations during the water hammer phenomenon. Numerical and experimental studies have been conducted. In order to include the viscoelastic behaviour of the HDPE pipe wall, the generalised Kelvin–Voigt model was introduced into the continuity equation. Transient equations were numerically solved using the explicit MacCormack method. A numerical model that involves assigning two values of flow velocity to the connection node was used. The aim of the conducted experiments was to record pressure changes downstream of the pipeline system during valve-induced water hammer. In order to validate the numerical model, the simulation results were compared with experimental data. A satisfactory compliance between the results of the numerical calculations and laboratory data was obtained.

Modeling and simulation of onset of condensation-induced water hammer

2020 ◽  
Vol 130 ◽  
pp. 103555
Author(s):  
Takashi Hibiki ◽  
Somboon Rassame ◽  
Wenbing Liu ◽  
Lutao Wang ◽  
Quanbin Zhao ◽  
...  
Keyword(s):  
Modeling And Simulation ◽  
Water Hammer

scholarly journals Influence of cavitation on the acoustic boundary conditions in water hammer experiments

2021 ◽  
Vol 1909 (1) ◽  
pp. 012015
Author(s):  
Sebastian Klein ◽  
Tobias Traudt ◽  
Michael Oschwald
Keyword(s):  
Boundary Conditions ◽  
Water Hammer ◽  
Acoustic Boundary Conditions

What Is Water Hammer, and Why Does It Matter?

Opflow ◽  
2021 ◽  
Vol 47 (4) ◽  
pp. 18-21
Author(s):  
Timothy Fallon
Keyword(s):  
Water Hammer

Analysis of Water Hammer Attenuation in Applications with Varying Valve Closure Times

2015 ◽  
Vol 141 (1) ◽  
pp. 04014107 ◽  
Author(s):  
E. Yao ◽  
G. Kember ◽  
D. Hansen
Keyword(s):  
Water Hammer ◽  
Valve Closure

A four-equation friction model for water hammer calculation in quasi-rigid pipelines

2017 ◽  
Vol 151 ◽  
pp. 54-62 ◽  
Author(s):  
Abdelaziz Ghodhbani ◽  
Ezzeddine Haj Taïeb
Keyword(s):  
Water Hammer ◽  
Friction Model
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