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Finite Volume Method for Computation of Water Hammer in Conical Tubes
Applied Mechanics and Materials, 2014The most traditional way to calculate water hammer in the conical tube is using some small discrete equivalent uniform tubes to replace it. this approximate treatment can not show the much accurate results of the conical tube,but also not reflect the actual physical discontinuities of the system.This paper use finite volume method to integrate water ...
Xiu Long Zhao, Jian Zhang, De Shuang Yu
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International Journal of Engine Research
The pressure fluctuation in nozzle of the common rail injector directly affects the stability of fuel injection. As the pressure fluctuation often the result of coaction of multiple factors, it is difficult to carry out in-depth research.
Jing Xu +5 more
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The pressure fluctuation in nozzle of the common rail injector directly affects the stability of fuel injection. As the pressure fluctuation often the result of coaction of multiple factors, it is difficult to carry out in-depth research.
Jing Xu +5 more
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Development of a Characteristic Particle Method for Water Hammer Simulation
Journal of Hydraulic Engineering, 2013AbstractA characteristic particle method is proposed to simulate a water hammer in piping systems. Two types of regular particles are designed to trace the solution evolution along their corresponding characteristic lines. Besides these regular particles, shock particles with dual states are introduced to follow the shock formed from the amalgamation ...
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Water Hammer Modeling Using 2nd Order Godunov Finite Volume Method
2009Analyzing and interpreting the water-hammer (unsteady flow) phenomena in a pipeline are not easy tasks. For complicated cases, the governing partial differential equations can only be solved numerically. Various numerical approaches have been introduced for pipeline transient calculations.
Saeed-Reza Sabbagh-Yazdi +2 more
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Water
The safe operation of drainage pumping stations, which are core flood-control facilities in eastern coastal areas of China, is paramount due to frequent typhoons and short-duration heavy rainfall.
Runlong Zhang +8 more
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The safe operation of drainage pumping stations, which are core flood-control facilities in eastern coastal areas of China, is paramount due to frequent typhoons and short-duration heavy rainfall.
Runlong Zhang +8 more
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Water
During the sudden closure of gates in long-distance gravity flow water supply projects, intense water hammer waves are generated. These waves can cause severe damage to the water supply tunnel structure, posing a significant threat to project safety.
Jinke Mao +8 more
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During the sudden closure of gates in long-distance gravity flow water supply projects, intense water hammer waves are generated. These waves can cause severe damage to the water supply tunnel structure, posing a significant threat to project safety.
Jinke Mao +8 more
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Water
This study addresses the water hammer protection challenges in the JH gravity-fed bifurcated pipeline network system in Xinjiang, China. A hydraulic transient numerical model is developed using the one-dimensional method of characteristics and ...
Yunpeng Zheng +3 more
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This study addresses the water hammer protection challenges in the JH gravity-fed bifurcated pipeline network system in Xinjiang, China. A hydraulic transient numerical model is developed using the one-dimensional method of characteristics and ...
Yunpeng Zheng +3 more
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Numerical Analysis of Pipeline Equipment Effect on Water Hammer Using Characteristic Method
Volume 1: Fora, Parts A, B, C, and D, 2003In this attempt effect of pipeline equipment behavior was considered on water hammer numerically. The effect includes opening / closing of the shut off valves, loss of coefficient of the outlet bypass pipe for the air chamber, elasticity of the pipeline and loss coefficient due to friction. In order to study the behavior, mass and momentum conservation
Mohammad R. Ansari, Abdolreza Davari
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IEEE Transactions on Sustainable Energy
The water hammer effect in a hydroturbine and improper setting of the PID parameters of a governor can cause a hydropower unit to provide negative damping to the corresponding hydro power generation system, affecting its frequency.
Hongchun Shu +5 more
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The water hammer effect in a hydroturbine and improper setting of the PID parameters of a governor can cause a hydropower unit to provide negative damping to the corresponding hydro power generation system, affecting its frequency.
Hongchun Shu +5 more
semanticscholar +1 more source
A Hybrid Model Coupling Data and Hydraulic Transient Laws for Water Distribution Systems
Water Resources ResearchThe physicsâinformed neural network (PINN) method has been applied to solve water hammer equations in pipeline systems due to its ability of seamlessly integrate measurement data with conservation laws, offering advantages over traditional numerical ...
Hexiang Yan +7 more
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