Results 41 to 50 of about 22,744 (164)

Investigation of Porous Structures for Protection of Pipelines against Water Hammer [PDF]

open access: yesآب و فاضلاب, 2018
This study was initiated to investigate the use of a porous structure in some parts of a pipeline to protect it against water hammer pressure wave.
Poria Asiaban, Manouchehr Fathi Moghadam
doaj   +1 more source

RELAP5 application for water hammer analysis in different thermal-hydraulic systems

open access: yesInternational Journal of Thermofluids, 2022
The water hammer phenomenon investigations employing RELAP5 code with one-dimensional two-fluid six-equation models of water and steam flow were performed and the main results shared in this paper.
Algirdas Kaliatka   +3 more
doaj   +1 more source

Optimization of advanced water hammer protection system for oil pipelines

open access: yes管道保护
Water hammer in oil pipelines, often resulting from manual misoperation and other factors, significantly affects safe pipeline operations. Implementing water hammer protection is crucial for ensuring safety, Starting with the water hammer advance ...
Mei JIN, Changbo WANG, Long JIN
doaj   +1 more source

A Simulation Calculation Method of a Water Hammer with Multpoint Collapsing

open access: yesEnergies, 2020
The traditional discrete vapor cavity model (DVCM) is widely used in water hammer simulation. Water column separation in pipelines is usually predicted with this model.
Li Zhao   +5 more
doaj   +1 more source

Research progress and prospect of numerical methods for modelling water hammer in hydraulic pipelines

open access: yesGuan'gai paishui xuebao
【Objective】Water hammer in hydraulic pipelines is a critical hydraulic transient phenomenon that threatens the safe and stable operation of water conservancy and water supply systems.
MEI Lifang   +4 more
doaj   +1 more source

Erosion by water-hammer [PDF]

open access: yesProceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character, 1928
Abstract Corrosion or erosion of the surfaces of metals under water is in many cases found to be actively promoted by their motion through the water, or by the motion of the water over them. In such cases the relative parts played in the action by corrosion and erosion respectively are not readily distinguished.
openaire   +1 more source

Analytical study on water hammer pressure in pressurized conduits with a throttled surge chamber for slow closure

open access: yesWater Science and Engineering, 2010
This paper presents an analytical investigation of water hammer in a hydraulic pressurized pipe system with a throttled surge chamber located at the junction between a tunnel and a penstock, and a valve positioned at the downstream end of the penstock ...
Yong-liang Zhang   +2 more
doaj   +1 more source

Impact of Branch Pipe Valve Closure Procedures on Pipeline Water Hammer Pressure: A Case Study of Xinlongkou Hydropower Station

open access: yesApplied Sciences
To investigate the impact of different valve closure strategies on water hammer pressure variations in pipelines and terminal valves under accident conditions, this study focuses on the Xinlongkou Hydropower Station water conveyance project.
Zilong Li   +5 more
doaj   +1 more source

A novel coupled progressive corrosion–water hammer inrush model for deep coal seam floors

open access: yesJournal of Rock Mechanics and Geotechnical Engineering
The mining industry is frequently subjected to various disasters, one of the major concerns is water-related disasters, particularly seam floor water inrush. These disasters pose significant threats to the safety and production of deep coal mines.
Genshui Wu, Jianping Zuo, Lisong Zhao
doaj   +1 more source

Controlling the Negative Pressure Caused by Water Hammer in Water Conveyance Pipe Lines Using Hydropneumatics Tank and Air Valves (A Case Study of Mehran City, Ilam Province) [PDF]

open access: yesعلوم و مهندسی آب و فاضلاب, 2017
Whenever and for any reason the velocity of the fluid ceases in the transfer line or water distribution networks, pressure waves will form in the pipe lines, which can produce a pressure several times more than a pressure pump’s output and lead to a ...
Asrin Bahrami   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy